Battle of Nanking

Battle of Nanking Part of The Second Sino-Japanese War Japanese soldiers stand atop the ruins of Nanking's Zhongshan Gate on December 13 with Zijinshan in the background Date 1–13 December 1937 Location Nanking and surrounding areas Result Japanese Victory, Fall of Nanking, Nanking Massacre Belligerents China National Revolutionary Army  Empire of Japan Imperial Japanese Army Commanders and leaders Tang Shengzhi Iwane Matsui Prince Yasuhiko Asaka Units involved Nanking Garrison Force Central China Area Army Strength c. 100,000 men c. 50,000 men Casualties and losses c. 50,000 killed in battle 1,953 killed in battle 4,994 wounded

Second Sino-Japanese War Major engagements in bold Began in 1931–1937 Mukden Manchuria Jiangqiao Nenjiang Bridge Jinzhou Harbin Shanghai (1932) Pacification of Manchukuo Rehe Great Wall Inner Mongolia Suiyuan Began in 1937–1939 Marco Polo Bridge Beiping-Tianjin Chahar Shanghai (1937) Sihang Warehouse Beiping-Hankou Railway Tianjin-Pukou Railway Taiyuan Pingxingguan Xinkou Nanjing Xuzhou Tai'erzhuang N.-E.Henan Lanfeng Amoy Chongqing Wuhan Wanjialing Canton Hainan Nanchang Xiushui River Suixian-Zaoyang Swatow 1st Changsha S.Guangxi Kunlun Pass Winter Offensive West Suiyuan Wuyuan Began in 1940–1942 Zaoyang-Yichang Hundred Regiments N. Vietnam C. Hubei S.Henan W. Hebei Shanggao S.Shanxi 2nd Changsha 3rd Changsha Yunnan-Burma Road Tachiao Oktwin Toungoo Yenangyaung Zhejiang-Jiangxi Sichuan invasion Began in 1943–1945 W.Hubei N.Burma-W.Yunnan Changde Ichi-Go C.Henan 4th Changsha Hengyang Guilin-Liuzhou W.Henan-N.Hubei Mt. Song W.Hunan 2nd Guangxi Others Aerial engagements

Battle of Nanking
Chinese name
Traditional Chinese	南京保衛戰
Simplified Chinese	南京保卫战
Literal meaning	Battle of Nanking
Transcriptions Mandarin Hanyu Pinyin Nánjīng Bǎowèi Zhàn Wade–Giles Nan2-ching1 Pao3-wei4 Chan4
Japanese name
Kanji	南京戦
Kana	なんきんせん
Transcriptions Romanization Nankin-sen

The Battle of Nanking was an engagement fought in early December 1937 between the National Revolutionary Army of China and the Imperial Japanese Army during the Second Sino-Japanese War for control of the city of Nanking, the capital of Republic of China.

Following the outbreak of war between Japan and China in 1937 the Japanese government had at first kept strong limits on the area of fighting and sought a negotiated settlement to the war, but following the Battle of Shanghai expansionists within the Japanese military won the day and on December 1 the campaign to capture Nanking was officially authorized. The task of occupying Nanking was given to General Iwane Matsui, the commander of Japan's Central China Area Army, who believed that the capture of Nanking would force China to surrender and thus end the war. Chinese leader Chiang Kai-shek ultimately decided to defend the city and appointed Tang Shengzhi to command the Nanking Defense Force, a hastily assembled army of local conscripts and the remnants of the Chinese units who had fought in the Battle of Shanghai.

Japanese soldiers marched from Shanghai to Nanking at a breakneck pace, rapidly defeating pockets of Chinese resistance, and by December 9 they had reached the last line of defense, the Fukuo Line, behind which lay the fortified walls of the city of Nanking. On December 10 Matsui ordered an all-out attack on Nanking, and after less than two days of intense fighting Chiang made the decision to abandon the defense. Before fleeing the city, Tang ordered his men to launch a concerted breakout of the Japanese siege, but by this time Nanking had been largely surrounded by the Japanese and its defenses were at the breaking point. Most of Tang's units simply collapsed, their soldiers often casting off their weapons and uniforms in the streets in the hopes of hiding among the city's civilian population.

Following the capture of the city Japanese soldiers massacred Chinese POWs, murdered civilians, and committed acts of looting and rape in an event known as the Nanking Massacre. Though Japan's decisive military victory excited and emboldened the Japanese people and government, the subsequent massacre tarnished Japan's reputation in the eyes of the world. Contrary to the expectations of Iwane Matsui, China did not surrender in the aftermath of the fall of Nanking and the war would continue for another eight years.

Prelude to the battle

Japan's decision to capture Nanking

After achieving victory in the Battle of Shanghai by mid-November 1937, Japan's Army General Staff, which was in charge of military operations, adopted a policy of non-expansion of hostilities with the aim of ending the war.^[1] On November 7 its de facto leader Deputy Chief of Staff Hayao Tada laid down an "operation restriction line" preventing its forces from leaving the vicinity of Shanghai, or more specifically from going west of the Chinese cites of Suzhou and Jiaxing.^[2] The city of Nanking is located further inland 300 kilometers west of Shanghai.^[2]

However, a major rift of opinion existed between the Japanese government and the two field armies it had deployed in Shanghai, the Shanghai Expeditionary Army (SEA) led by General Iwane Matsui and the 10th Army led by Lieutenant General Heisuke Yanagawa, both of which were nominally under the control of the Central China Area Army also led by Matsui.^[3] Matsui had made clear to his superiors even before he had left for Shanghai that he wanted to march on Nanking.^[4] He was convinced that the conquest of the Chinese capital city of Nanking would provoke the fall of the entire Nationalist Government of China and thus hand Japan a quick and complete victory in its war on China.^[4] Yanagawa was likewise eager to conquer Nanking and both men chafed under the operation restriction line that had been imposed on them by the Army General Staff.^[3]

On November 19 Yanagawa ordered his 10th Army to pursue retreating Chinese forces across the operation restriction line to Nanking, a flagrant act of insubordination.^[5] When Tada discovered this the next day he ordered Yanagawa to stop immediately, but was ignored. Matsui made some effort to restrain Yanagawa, but also told him that he could send some advance units beyond the line.^[6] In fact, Matsui was highly sympathetic with Yanagawa actions^[7] and a few days later on November 22 Matsui issued an urgent telegram to the Army General Staff insisting that "To resolve this crisis in a prompt manner we need to take advantage of the enemy's present declining fortunes and conquer Nanking... By staying behind the operation restriction line at this point we are not only letting our chance to advance slip by, but it is also having the effect of encouraging the enemy to replenish their fighting strength and recover their fighting spirit and there is a risk that it will become harder to completely break their will to make war."^[8]

Meanwhile, as more and more Japanese units continued to slip past the operation restriction line, Tada was also coming under pressure from within the Army General Staff.^[3] Many of Tada's colleagues and subordinates, including the powerful Chief of the General Staff Operations Division Sadamu Shimomura, had come around to Matsui's viewpoint and wanted Tada to approve an attack on Nanking.^[5] On November 24 Tada finally relented and abolished the operation restriction line "owing to circumstances beyond our control", and then several days later he reluctantly approved the operation to capture Nanking.^[3] Tada flew to Shanghai in person on December 1 to deliver the order,^[9] though by then his own armies in the field were already well on their way to Nanking.^[3]

China's decision to defend Nanking

On November 15, near the end of the Battle of Shanghai, Chiang Kai-shek convened a meeting of the Military Affairs Commission's Supreme National Defense Council to undertake strategic planning, including a decision on what to do in case of a Japanese attack on Nanking.^[10]

Here Chiang insisted fervently on mounting a sustained defense in Nanking. Chiang argued, just as he had during the Battle of Shanghai, that China would be more likely to receive aid from the great powers, possibly at the Nine Power Treaty Conference then in session, if it could prove on the battlefield its will and capacity to resist the Japanese.^[10] He also noted that holding onto Nanking would strengthen China's hand in peace talks which he wanted the German ambassador Oskar Trautmann to mediate.^[10]

And yet, Chiang ran into stiff opposition from his staff officers, including the powerful Chief of Staff of the Military Affairs Commission He Yingqin, the Deputy Chief of Staff Bai Chongxi, and the head of the Fifth War Zone Li Zongren.^[10][11] These men argued that the Chinese Army needed more time to recover from its losses at the Battle of Shanghai before it could stand and fight again, and they also pointed out that Nanking was highly indefensible topographically.^[10] The mostly gently sloping terrain in front of Nanking would make it easy for the attackers to advance on the city whereas the Yangtze River behind Nanking would cut off the defenders' retreat.^[11]

Chiang, however, had become increasingly agitated over the course of the Battle of Shanghai, even angrily declaring that he would stay behind in Nanking alone and command the defense personally.^[11] But just when Chiang believed himself completely isolated, General

• Media related to at Wikimedia Commons

External links

References

• Sino-Japanese War (1937-1945)

See also

The Second Sino-Japanese War was to drag on for another eight years and ultimately end with Japan's defeat in 1945.

The outcome of this war will not be decided at Nanking or in any other big city; it will be decided in the countryside of our vast country and by the inflexible will of our people... In the end we will wear the enemy down. In time the enemy's military might will count for nothing. I can assure you that the final victory will be ours.^[105]

Furthermore, the loss of Nanking did not force China to capitulate as Japan's leaders had predicted.^[89] Even so, buoyed by their victory, the Japanese government replaced the lenient terms for peace which they had relayed to the mediator Ambassador Trautmann prior to the battle with an extremely harsh set of demands that were ultimately rejected by China.^{[101][102][103]} On December 17 in a fiery speech entitled, "A Message to the People Upon Our Withdrawal From Nanking", Chiang Kai-shek defiantly declared that,^[93][104]

In spite of its military accomplishment, Japan's international reputation was blackened by the Nanking Massacre, as well as by a series of international incidents that occurred during and after the battle.^[99] Most notable among them were the shelling by Japanese artillery of the British steamship Ladybird on the Yangtze River on December 12, and also the sinking by Japanese aircraft of the American gunboat Panay not far downstream on the same day.^[100] The Allison Incident, the slapping of an American consul by a Japanese soldier, further increased tensions with the United States.^[100]

An official report of the Nationalist Government argued that an excess of untrained and inexperienced troops was a major cause of the defeat, but at the time Tang Shengzhi was made to bear much of the blame and later historians have also criticized him.^[61][94] Japanese historian Tokushi Kasahara, for instance, has characterized his battlefield leadership as incompetent, arguing that an orderly withdrawal from Nanking may have been possible if Tang had carried it out on December 11 or if he had not fled his post well in advance of most of his beleaguered units.^[95][96] However, Chiang's very decision to defend Nanking is also controversial. Masahiro Yamamoto believes that Chiang chose "almost entirely out of emotion" to fight a battle he knew he could only lose,^[97] and fellow historian Frederick Fu Liu concurs that Chiang's decision is often regarded as one of "the greatest strategical mistakes of the Sino-Japanese war".^[98] Still, the historian Jay Taylor notes that Chiang was convinced that to run from his capital city "without a serious fight... would forever be regarded as a cowardly decision."^[93]

The conquest of Nanking had been quicker and easier than the Japanese had foreseen,^[6][90] and they had lost only 1,953 soldiers in battle, plus 4,994 wounded.^[91] Japan's casualties were undoubtedly dwarfed by those of China, though no precise figures exist on how many Chinese were killed in action. The Japanese claimed to have killed 84,000 enemy during the campaign whereas a contemporary Chinese source claims that their army suffered 20,000 casualties, but Masahiro Yamamoto notes that the Japanese usually inflated their body counts while the Chinese had reason to downplay the scale of their loss.^[92] Ikuhiko Hata estimates that 50,000 Chinese soldiers were killed in combat during the entire battle.^[30] Proportionate to the size of the force committed, such losses were greater than those suffered by the Chinese in the devastating Battle of Shanghai.^[93]

^[19] F. Tillman Durdin noted even before the city had fallen that "Events in the field have renewed the belief of the Japanese people in the invincibility of their arms."^[89][88] Mass celebrations of every sort, some spontaneous and some with government sponsorship, took place throughout country, including a number of resplendent lantern parades which were still vividly remembered by Japanese onlookers several decades later.^[88] where the capture of the city provoked a frenzy of excitement among Japan's citizenry.^[87]News of the massacre was tightly censored in Japan,

Aftermath and assessment

^[86] The Nanking Self-Government Committee, a new municipal authority formed from local Chinese collaborators, was inaugurated on January 1, 1938.^[85] By the end of December most Japanese soldiers had left Nanking, though units of the Shanghai Expeditionary Army stayed on to occupy the city.^[84]The Japanese Army's mopping-up operations and the large-scale massacres that accompanied them were over by the afternoon of December 17 when General Matsui entered Nanking for the victory parade.

Within Nanking, the Japanese units on mopping-up duty had decided that the former Chinese soldiers hiding in the city were a possible security risk and therefore carried out a thorough search of every building in Nanking and made frequent incursions into the Nanking Safety Zone in search of them.^[76][77] Japanese units attempted to distinguish former soldiers from civilians by checking if they had marks on their shoulders from wearing a backpack or carrying a rifle.^[76] However, the criteria used were often arbitrary as was the case with one Japanese company which apprehended all men with "shoe sores, callouses on the face, extremely good posture, and/or sharp-looking eyes" and for this reason many civilians were taken at the same time.^[81] What happened to the Chinese soldiers and civilians who were captured varied greatly from unit to unit, though many were summarily executed in an event known as the Nanking Massacre, which the foreign residents and journalists in Nanking made known internationally within days of the city's fall.^[82] Though the Japanese also committed random acts of murder, rape, looting, and arson during their occupation of Nanking, military historian Masahiro Yamamoto notes that of the more than 40,000 corpses buried in and around Nanking after the fall of the city only 129 were women or children which suggests that the large majority of the victims of the massacre were adult Chinese men taken by the Japanese as former soldiers and massacred.^[83]

^[80] pockets of resistance outside Nanking persisted for several more days.^[79] Though Mufushan, just north of Nanking, was taken by Japan's Yamada Detachment without much bloodshed on the morning of December 14,^[78][77][76]However, the fighting in Nanking did not end entirely on the night of December 12 to 13 when the Japanese Army took the remaining gates and entered the city. During their mopping-up operations in the city the Japanese continued for several more days to beat back sporadic resistance from Chinese stragglers.

Mopping-up operations and the Nanking Massacre

"The capture of Nanking was the most overwhelming defeat suffered by the Chinese and one of the most tragic military debacles in the history of modern warfare. In attempting to defend Nanking the Chinese allowed themselves to be surrounded and then systematically slaughtered... The graveyard of tens of thousands of Chinese soldiers may also be the graveyard of all Chinese hopes of resisting conquest by Japan."^[70]

In a report published by the New York Times just five days after the fall of the city, Durdin concluded that,

Many of these tens of thousands of Chinese soldiers who could not escape the city responded by casting off their uniforms and weaponry, switching to civilian clothes often by stealing them from passersby, and then desperately seeking sanctuary in the Nanking Safety Zone by mingling with civilians.^[71] The American journalist F. Tillman Durdin "witnessed the wholesale undressing of an army that was almost comic."^[70] "Arms were discarded along with uniforms, and the streets became covered with guns, grenades, swords, knapsacks, coats, shoes and helmets... In front of the Ministry of Communications and for two blocks further on, trucks, artillery, busses, staff cars, wagons, machine-guns, and small arms became piled up as in a junk yard."^[47]

^[73] Others who saw this turned back to the city in despair.^[75] Furthermore, by this point the Japanese encirclement of Nanking was virtually complete and many who were attempting to brave the Yangtze soon found themselves being fired upon from both sides of the river.^[73] The rest of the Chinese soldiers took to the Yangtze's rough and frigid waters en masse while clinging to logs and pieces of scrap lumber, though most were quickly swallowed up by the river.^[71] The crowd fought to clamber aboard what few craft were available, but these soon became so overloaded that they sank midway.^[73] At 9:00 PM a fleeing Chinese tank unit, which had also not received Tang's parting message, charged the barrier troops and burst through their blockade, only for the crowd to then find that there were hardly any boats remaining in the harbor.^[74][73] who fired on the crowd for retreating without permission and managed to hold it back.barrier troops by Chinese XiaguanBy contrast, a massive crowd of thousands of Chinese soldiers and civilians from the south side of Nanking, who were fleeing in panic and disarray from the advance of Japan's 10th Army on the same night, were prevented from reaching the harbor at

One of the few units that did manage to get out of Nanking was China's 2nd Army led by Xu Yuanquan situated just north of Nanking.^[71] Though Xu never received Tang's order to abandon the defense, on the night of December 12 he had heard that Nanking has been captured and so decided to withdraw on his own accord. During the night he managed to evacuate most of his unit across the Yangtze River just before Japanese naval units blockaded the river.^[71]

By the time Tang slipped out of the city, however, the entire Nanking Garrison Force was rapidly disintegrating with some units in open flight.^[68][69] Furthermore, contact had already been lost with many units who thus never received Tang's message and continued to hold their positions as ordered,^[70] though even those that did receive it had little luck at slipping through the Japanese lines.^[71] China's 66th and 83rd Corps made a bid to evade the Japanese as planned through a gap to the east but immediately ran into their own minefield.^[71] After that they were attacked in flight by Japanese units and lost two divisional chiefs of staff in combat.^[71] Though the two corps had started the battle at least 11,000 men strong, only 600 of them escaped Nanking.^[71][72] Near dawn on December 13 a portion of China's 74th Corps was also annihilated in a bid to break through Japanese lines along the Yangtze River south of Nanking.^[71]

Unbeknownst to the Japanese however, Chiang had already ordered Tang to abandon the defense.^[66] In spite of his earlier talk about holding out in Nanking to the bitter end, Chiang telegraphed an order to Tang on December 11 to abandon the city.^[68] Tang prepared to do so the next day on December 12, but startled by Japan's intensified onslaught he made a frantic last-minute bid to conclude a temporary ceasefire with the Japanese through German citizens John Rabe and Eduard Sperling.^[68] Only when it became clear that the negotiations could not be completed in time did Tang finally finish drawing up a plan calling for all his units to launch a coordinated breakout of the Japanese encirclement.^[68] They were to commence the breakout under cover of darkness at 11:00 PM that night and then muster in Anhui. Just after 5:00 PM on December 12 Tang arranged for this plan to be transmitted to all units, and then he crossed the Yangtze River, escaping through the city of Pukou on the opposite bank of the river less than twenty-four hours before it was occupied by Japan's Kunisaki Detachment.^[68]

The collapse of the Nanking Garrison Force

Nonetheless, the Japanese were gaining the upper hand over the hard-pressed and surrounded Chinese defenders.^[57] On December 12 the SEA captured Peak #2 of Zijinshan and from this vantage point unleashed a torrent of artillery fire at Zhongshan Gate where a large portion of the wall suddenly gave way.^[57] After sunset the fires that blazed out of control on Zijinshan were visible even from Zhonghua Gate in the south which was completely occupied by Japan's 10th Army on the night of December 12 to 13.^[66][67]

At the height of the battle Tang Shengzhi complained to Chiang that, "Our casualties are naturally heavy and we are fighting against metal with merely flesh and blood",^[61] but what the Chinese lacked in equipment they made up for in the sheer ferocity with which they fought, though this was partially due to strict orders that no man or unit was to retreat one step without permission.^[62][63] Over the course of the battle roughly 1,000 Chinese soldiers were shot dead by their army's own barrier troops for attempting to retreat,^[64] and on Yuhuatai Japanese soldiers noticed that many Chinese pillboxes were chained from the outside to prevent their occupants from fleeing.^[65]

^[57] Meanwhile, just west of Zhonghua Gate, other soldiers also of Japan's 10th Army had punched a hole through Chinese lines in the wetlands south of Shuixi Gate and were launching a violent drive on that gate with the support of a fleet of tanks.^[60][57] By 5:00 PM more and more Japanese troops were crossing the moat and swarming Zhonghua Gate by fording makeshift bridges so rickety their engineers had to hold them aloft with their own bodies, and with the help of some well aimed Japanese artillery fire from atop Yuhuatai parts of the wall finally crumbled.^[59] Five of them were killed by gunfire but the last man grabbed a Chinese machine gun and held the position singlehandedly. Soon after another Japanese team set a fire in front of the gate to create a smokescreen.^[59] At noon on December 12 a team of just six Japanese soldiers made it across the moat in a small boat and succeeded in scaling the wall at Zhonghua Gate on a shaky bamboo ladder and raising the Japanese flag there.^[58] up to this gate to blow a hole in it, but it got lost in the morning fog and failed to reach the wall.picric acid The Japanese had already tried the previous night to infiltrate a "suicide squadron" bearing explosive ^[56]Behind Yuhuatai the 88th Division had stationed its barely trained new recruits atop Nanking's Zhonghua Gate.

At the same time Japan's 10th Army was storming Yuhuatai, a rugged plateau situated directly in front of Zhonghua Gate on Nanking's southern side. The 10th Army's progress was slow and casualties were heavy as Yuhuatai was built like a fortress of interlocking pillboxes and trenches manned by three Chinese divisions, including the German-trained 88th Division, though the Chinese were also apt to counterattack and some Japanese units were forced to spend more time defending than attacking.^[55] Close to every single man that the 88th Division had deployed on Yuhuatai was killed in action, including four of its three regimental commanders and both of its brigade commanders, but in the process the Japanese were made to suffer 2,240 casualties including 566 dead.^[56] Yuhuatai was finally overrun at noon on December 12.^[57]

^[54][53] The Chinese brought up reinforcements, including tanks, and they poured down grenades and even flaming, gasoline-soaked lumber onto the Japanese battalion, which was only saved from annihilation by timely bursts of concentrated artillery fire from the rest of their division. The battalion succeeded in holding its position for the rest of the battle despite losing eighty of its eight-eight men.^[54][53] That evening Japanese engineers and artillerymen closing in on Guanghua Gate managed to blow a hole in the wall. A Japanese battalion launched a daring attack through the gap and planted a Japanese flag on a portion of the gate, but was immediately pinned down by a series of determined Chinese counterattacks.^{[54][53][52][25]}Also on Nanking's eastern side but further south, other units of the SEA faced the difficult task of fording the large moat standing between them and three of the city gates, Zhongshan Gate, Guanghua Gate, and Tongji Gate, though the speed of Japan's earlier advance played in their favor as key Chinese units slated to be deployed here were not yet in position. ^[52].Ming Xiaoling Mausoleum and Sun Yat-sen Mausoleum Clambering up the ridges of the mountain, the men of the SEA had to painstaking wrest control of each Chinese encampment one by one in bloody infantry charges. Advancing along the south side of Zijinshan was no easier as General Matsui had forbidden his men from using artillery there due to his deep conviction that no damage should come to its two famous historical sites, ^[25] That day the SEA assaulted China's super-elite Training Brigade on the peaks of Zijinshan, which dominate Nanking's northeast horizon.^[52]At 1:00 PM on December 10 General Matsui ordered all units to launch a full-scale attack on Nanking.

The final battle for Nanking

Later that day Tang proclaimed to his men that, "Our army has entered into the final battle to defend Nanking on the Fukuo Line. Each unit shall fight to the last, resolving to either live or die at its post."^[50] The American journalist F. Tillman Durdin, who was reporting on site during the battle, saw one small group of Chinese soldiers set up a barricade, assemble in a solemn semicircle, and promise each other that they would die together where they stood.^[47]

By December 9 Japan's forces had reached Nanking's last line of defense, the daunting Fukuo Line.^[50] At this point General Matsui had a "summons to surrender" drawn up which implored the Chinese to send military envoys to Nanking's Zhongshan Gate to discuss terms for the peaceful occupation of the city, and he then had a Mitsubishi Ki-21 scatter thousands of copies of the message over the city.^[51][52] On December 10 a group of Matsui's senior staff officers waited to see if the gate would be opened, but Tang Shengzhi had no intention of responding.^[52]

On December 5, Chiang Kai-shek paid a visit to a defensive encampment near Jurong to heckle his men to keep up the fight, but he was forced to beat a hasty retreat when the Japanese Army burst onto the battlefield guns blazing.^[48] On that day the rapidly moving forward contingents of the SEA occupied Jurong and then arrived at Chunhuazhen, a key point of Nanking's outer line of defense which would put Japanese artillery in range of the city.^[22][36][48] Here China's 51st Division flung its main force into the fighting and repeatedly repulsed Japanese attacks before cracking on December 8 when the main force of the SEA arrived.^[48] The SEA also took the fortress at Zhenjiang and the city of Tangshuizhen on that day.^[49] Meanwhile on the south side of the same defense line, armored vehicles of Japan's 10th Army charged the Chinese position at Jiangjunshan and Niushoushan defended by China's 58th Division.^[48] Valiant Chinese soldiers armed with hammers jumped onto the vehicles and banged repeatedly on their roofs shouting "Get out of there!", but after darkness fell on the battlefield the 58th Division was finally overwhelmed on December 9 after suffering, according to its own records, 800 casualties.^[48]

^[47][46][6] Here the Japanese were aided by their complete air supremacy, their abundance of tanks, the improvised and hastily-constructed nature of the Chinese defenses, and also by the Chinese strategy of concentrating their defending forces on small patches of relatively high ground which made them easy to outflank and surround.^[28][21]During their advance the Japanese overcame initially light resistance from the already battered Chinese forces who were being pursued by the Japanese from Shanghai in a "running battle".

General Matsui, along with the Army General Staff, envisaged making a slow and steady march on Nanking, but his subordinates refused to play along and instead raced eagerly with each other to be the first to get to the city.^[41][42][43] Soon all units were roaring to Nanking at the breakneck pace of up to forty kilometers per day.^[44] For instance, the 10th Army captured the key town of Guangde on November 30 three days before it was even supposed to start its planned advance, and the SEA captured Danyang on December 2 more than five days ahead of schedule.^[41] In order to achieve such speeds, the Japanese soldiers carried little with them except weaponry and ammunition.^[45] Because they were marching well ahead of most of their supply lines they had to purchase or loot their food from Chinese civilians along the way.^[45]

^[40] on the river bank west of Nanking while the Yamada Detachment was to be sent on the far north route with the ultimate aim of taking Mufushan just north of Nanking.Pukou The Kunisaki Detachment was to cross the Yangtze in the south with the ultimate aim of occupying ^[40] The two prongs of the Central China Area Army's pincer were the Shanghai Expeditionary Army (SEA) advancing on Nanking from its eastern side and the 10th Army advancing from its southern side. To the north and west of Nanking lay the Yangtze River, but the Japanese planned to plug this possible escape route as well both by dispatching a squadron of ships up the river and by deploying two special detachments to circle around behind the city.^[39][36] which the Japanese called "encirclement and annihilation".pincer movement The plan of attack against Nanking was a ^[38] though only about 50,000 of these would ultimately participate in the fighting.^[37]By the start of December Japan's Central China Area Army had swollen in strength to over 160,000 men,

Japan's march on Nanking

Among those Chinese who did manage to escape Nanking were Chiang Kai-shek and his wife Song Meiling, who had flown out of Nanking on a private plane just before the crack of dawn on December 7.^[36] The mayor of Nanking and most of the municipal government left the same day, entrusting management of the city to the Nanking Garrison Force.^[36]

China's defense preparations were, however, continually obstructed by nonstop Japanese air raids. The Japanese Navy Air Service had struck Nanking for the first time on August 15, and after winning air supremacy over the city on September 19 it began bombing the city night and day with impunity.^[31] In the face of Japanese bombs and the inexorable advance of the Japanese Army, the large majority of Nanking's citizens fled the city. By early December Nanking's population had dropped from its former total of more than one million to less than 500,000, a figure which included Chinese refugees from rural villages burned down by their own government's scorched earth policies.^[32][33] Most of those still in the city were very poor and had nowhere else to go.^[32] Foreign residents of Nanking were also repeatedly asked to leave the city which was becoming more and more chaotic under the strain of bombings, fires, looting by criminals, and electrical outages,^[16][20] but those few foreigners brave enough to stay behind strived to find a way to help the Chinese civilians who had been unable to leave.^[34] In late-November a group of them led by German citizen John Rabe established the Nanking Safety Zone in the center of the city, a self-proclaimed demilitarized zone where civilian refugees could congregate in order to hopefully escape the fighting.^[34] The safety zone was recognized by the Chinese government,^[35] and on December 8 Tang Shengzhi demanded that all civilians evacuate there.^[19]

The defending army, the Nanking Garrison Force, was on paper a formidable army of thirteen divisions, including three elite German-trained divisions plus the super-elite Training Brigade, but in reality most of these units had trickled back to Nanking severely mauled from the fighting in Shanghai.^[26][27] By the time they reached Nanking they were physically exhausted, low on equipment, and badly depleted in total troop strength. In order to replenish some of these units, 16,000 young men and teenagers from Nanking and the rural villages surrounding it were speedily pressed into service as new recruits.^[14][28] However, due the unexpected rapidity of the Japanese advance, most of the new conscripts received only rudimentary training on how to fire their guns on their way to or upon their arrival at the frontlines.^[14][27] No definitive statistics exist on how many soldiers the Nanking Garrison Force had managed to cobble together by the time of the battle, but among leading historians David Askew puts the number at 73,790 to 81,500,^[29] Ikuhiko Hata estimates 100,000,^[30] and Tokushi Kasahara argues in favor of about 150,000.^[14]

Outside the walls a series of semicircular defense lines were constructed in the path of the Japanese advance, most notably an outer one about sixteen kilometers from the city and an inner one directly outside the city known as the Fukuo Line, or multiple positions line.^{[16][21][22][23]} The Fukuo Line, a sprawling network of trenches, moats, barbed wire, mine fields, gun emplacements, and pillboxes, was to be the final defense line outside Nanking's city walls. There were also two key high points of land on the Fukuo Line, the peaks of Zijinshan to the northeast and the plateau of Yuhuatai to the south, where fortification was especially dense.^[14][24][25] In order to deny the Japanese invaders any shelter or supplies in this area, Tang adopted a strategy of scorched earth on December 7, ordering all homes and structures in the path of the Japanese within one to two kilometers of the city to be incinerated, as well as all homes and structures near roadways within sixteen kilometers of the city.^[14]

^[20][19] By December 6 all the gates into the city had been closed and then barricaded with an additional layer of sandbags and concrete six meters thick.^[18], rose up to twenty meters in height, were nine meters thick, and had been studded with machine gun emplacements.Ming Dynasty The walls, which had been constructed hundreds of years earlier during the ^[17] Nanking itself was surrounded by formidable stone walls stretching almost fifty kilometers around the entire city.^[16][15][14]On November 20 the Chinese Army and teams of conscripted laborers began to hurriedly bolster Nanking's defenses both inside and outside the city.

China's defense preparations

The road to Nanking

Though both men publicly declared that they would defend Nanking "to the last man",^[12][13] they were aware of their precarious situation.^[11] On the same day that the Nanking Garrison Force was established Chiang had officially moved the capital of China from Nanking to the city Chongqing deep in China's interior,^[14] and both Chiang and Tang would at times give contradictory instructions to their subordinates on whether their mission was to defend Nanking to the death or merely to delay the Japanese advance.^[11]

^[11] The orders Tang received from Chiang Kai-shek on November 30 were to "defend the established defense lines at any cost and destroy the enemy’s besieging force".[11]