Structure of the Irish Defence Forces

This article represents the structure of the Irish Defence Forces as of May 2020:
Chief of Staff.
The Chief of Staff is a three-star rank and holds the authority and responsibility in respect to all staff duties relating to the management of the Irish Defence Forces.
Army.
The Army is the land warfare branch of the Irish Defence Forces and consists of two brigades, a training centre providing training to all the defense forces, and minor units.
1st Brigade.
The 1st Brigade is headquartered at the Collins Barracks in Cork. The brigade is responsible for the counties of Carlow, Clare, Cork, Galway, Kerry, Kilkenny, Laois, Limerick, Offaly, Tipperary, Waterford, and Wexford.
2nd Brigade.
The 2nd Brigade is headquartered at the Cathal Brugha Barracks in Dublin. The brigade is responsible for the counties of Cavan, Donegal, Dublin, Kildare, Leitrim, Longford, Louth, Mayo, Meath, Monaghan, Roscommon, Sligo, Westmeath, and Wicklow.
Defence Forces Training Centre.
The Defence Forces Training Centre (DFTC) based at the Curragh Camp is provides professional training to the Irish Army:
Army Reserve.
The Army Reserve is a part-time, voluntary organisation established on 1 October 2005, whose members round out regular army units. The Army Reserve is present at the following locations:
Infantry battalion organization.
The infantry battalions of the Irish Army are organized as follows:
Air Corps.
The Air Corps is the air branch of the Irish Defence Forces. Headed by a Brigadier General it comprises a staff headquarters, two operational wings, two support wings, one independent squadron and the Air Corps College.
No 1 Operations Wing.
No 1 Operations Wing operates the fixed-wing assets of the Air Corps.The wing is divided into four flying and two non-flying squadrons:
No 3 Operations Wing.
No 3 Operations Wing is operates all Air Corps helicopters,and is divided into three squadrons. It provides pilots for the Emergency Aeromedical Service, the air ambulance service which is jointly operated by the Air Corps and the HSE National Ambulance Service.
No 4 Support Wing.
No 4 Support Wing carries out second line maintenance and manages the procurement of spares and aviation fuel. This formation has two squadrons.
No 5 Support Wing.
No 5 Support Wing is responsible for the logistic support for the Air Corps and the management and security of Casement Aerodrome.
Air Corps College.
The Air Corps College is the principal training unit of the Irish Air Corps, where all entrants into the service undertake their training. The College is divided into three distinct schools:
Naval Service.
The Naval Service is the sea branch of the Irish Defence Forces. Headed by a Brigadier General it comprises a staff headquarters, two commands, and the Naval College.
Naval Operations Command.
Naval Operations Command is the command component of the Irish Naval Service responsible for all day-to-day activities of the service, both at sea and on shore. 
Naval Support Command.
Naval Support Command oversees the personnel, logistical and technical resources of the Naval Service, allowing the service to meets its operational and training commitments. Ship procurement, maintenance, repair, provisions, ordnance, food, fuel, personnel and transportation are handled by Naval Support Command.
Naval College.
The Naval College provides training to cadets, non-commissioned officers, and recruits of the Naval Service. The Naval College trains and educates personnel for service, providing a mixture of different courses ranging from officer training right through to Naval Engineering. The Naval College is based out of the Naval Service's headquarters at Naval Base Haulbowline but also provides classes and lessons in non-military naval training at the nearby National Maritime College of Ireland in Ringaskiddy.
Naval Service Reserve.
The Naval Service Reserve is the reserve force of the Naval Service. Its personnel supplements the crew of vessels of the Naval Service during operations, and conducts stand-alone operations within their respective ports, such as security duties, sighting reports and intelligence gathering.