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CIS Corps (Ireland)


CIS Corps (Ireland)

Communications and Information Services Corps
Irish: An Cór Seirbhísí Cumarsáide agus Eolais
Collar badge of the DF CIS Corps
Country  Ireland
Branch Irish Army
Naval Service
Air Corps
Type Military communications
Role Installation, maintenance and operation of telecommunications and ICT systems
Signals intelligence
Size Battalion strength
Part of Defence Forces
Garrison/HQ McKee Barracks, Dublin
Abbreviation CIS

The Communications and Information Services Corps (CIS) (Irish: An Cór Seirbhísí Cumarsáide agus Eolais) – formerly referred to as the Army Corps of Signals – is one of the combat support corps of the Irish Defence Forces, the military of Ireland. It is responsible for the installation, maintenance and operation of communications and information systems for the command, control and administration of the Defence Forces, and the facilitation of accurate, real-time sharing of information between the Army, Naval Service and Air Corps branches at home and overseas.[1] The CIS Corps is headquartered at McKee Barracks, Dublin, and comes under the command of an officer of Lieutenant Colonel rank, known as the Director of CIS Corps.[2]


Members of the Defence Forces CIS at the Curragh Camp, County Kildare

Formerly the Army Corps of Signals, the Communications and Information Services Corps is responsible for the development and operation of Information Technology and Telecommunications systems in support of Defence Forces tasks. It is also responsible for coordinating all communications – radio and line – and information systems, communications research and update of communications in line with modern developments and operational requirements. The CIS Corps are tasked with utilising networking and information technologies in order to dramatically increase Defence Force operational effectiveness through the provision of timely and accurate information to the appropriate commander, along with the real time efficient sharing of information and intelligence with the Army, Naval Service and Air Corps, as well as with multinational partners involved in international peacekeeping and other actors as required.[1]

This role includes the development and maintenance of a secure nationwide Defence Forces Telecommunications Network (DFTN), which can support both protected voice and data services, and the provision, and maintenance of encrypted military radio equipment for use by Defence Forces personnel at home and abroad. CIS Corps units are dispersed throughout the DF giving Communications and IT support to each of the Army Brigades; Naval Service, Air Corps, Defence Forces Training Centre (DFTC) and Defence Forces Headquarters (DFHQ). The CIS Corps have Base Workshops where detailed maintenance and research and development is conducted.[1]

The CIS Corps collar flash features the angel Gabriel, the messenger of God, behind a signal shield and the caption "Cór Comharthaíochta". This is the Irish translation for 'Signals Corps', the translation for Communications and Information Services Corps is "An Cór Seirbhísí Cumarsáide agus Eolais".[3]

Cyber and surveillance operations

The Communications and Information Services (CIS) Corps works with the Defence Forces intelligence branch, the Directorate of Military Intelligence, with regards to signals intelligence, and houses a dedicated SIGINT element within the Corps. The DF CIS Corps has the ability to intercept and monitor communications, remotely collect data, and process it.[4] Under Irish legislation, the Criminal Justice (Surveillance) Act 2009 and Interception of Postal Packets and Telecommunications Messages (Regulation) Act 1993 provides the Defence Forces with the authority to conduct domestic intelligence operations involving surveillance, electronic communications and stored electronic information in order to safeguard and maintain the security of the state.[5]

The CIS Corps along with the Garda Síochána, the national police force, provide a significant domestic support role to the National Cyber Security Centre (NCSC) of the Department of Communications, Energy and Natural Resources in countering cyber-attacks, protecting critical national infrastructure and securing government communications.[6][7] CIS is responsible for cyber security within the Defence Forces, and maintains a capability in that area for the purpose of protecting its own networks and users domestic and foreign.[8]

In July 2015, leaked email correspondence from Hacking Team – a private Italian spying and eavesdropping software company – reportedly showed members of the Irish CIS Corps in discussions with the company to purchase intrusion and surveillance "solutions" for the lawful interception of online communications.[9][10] A Defence Forces spokesperson said that for operational security reasons it could not comment on specific elements of the activities of the CIS Corps, but confirmed that no goods or services were purchased from the company in question.[11][12]

CIS School

Irish Army CIS on ISTAR training as part of the Nordic Battlegroup

Soldiers join the Communications and Information Services Corps in one of the following apprenticeship trades;

All recruits do their basic military training.

The CIS School runs a large number of CIS related courses, including a degree program in Military Communications for CIS technicians in association with the Institute of Technology, Carlow (ITC).[13]

There are 3 sections to the CIS School, providing training in the areas of operational procedures, technical proficiency and simulation.

Procedural and Operations Section (Proc/Ops);

  • Communications Operative Course
  • Detachment Commanders Course
  • Aerial Riggers Course
  • Regimental Signals Course
  • CIS Standard NCO Course
  • CIS Young Officers Course

Technical Section;

  • CIS Trainee Technician Scheme (TTS)
  • Technical Training Advancement Courses
  • Strategic Applications Training

Simulation Section;

The DIRT Range is a digital indoor shooting range in which trainees can be assessed on their marksmanship skills for the various small arms weapons used by the DF. It helps develop these proficiencies methodically without firing live ammunition on a regular basis.[13] The €1 million facility is based at the Dept of Defence properties at Kilworth Camp, County Cork.[14]

Communications and Information Services Corps Units

Active units

Defunct units

See also


  1. ^ a b c
  2. ^
  3. ^
  4. ^
  5. ^
  6. ^
  7. ^
  8. ^
  9. ^
  10. ^
  11. ^
  12. ^
  13. ^ a b c
  14. ^

External links

  • Defence Forces Ireland - Army Corps - Communications and Information Services Corps
  • Defence Forces Ireland - Air Corps - Communication & Information Services Squadron
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