Shannon River Basin a measurement of . When added to the Shannon's estuary this gives a total river flow of , which makes it the longest river within the River Shannon basin (from source to mouth)— longer than the Shannon Pot source. Thus the Boyle-Shannon river can be regarded as having the longest natural river flow in Ireland. The River Shannon Basin touches more than half (17) of Ireland's counties:- Limerick, Clare, Tipperary, Offaly, Westmeath, Longford, Roscommon, Kerry, Galway, Leitrim, Cavan, Sligo, Mayo, Cork, Laois, Meath and Fermanagh. There are many towns situated in the Shannon Basin. Towns and Villages (with 2011 populations)
Irish Army responsibility which includes the counties of Carlow, Cork, Galway, Kerry, Kilkenny, Laois, Limerick, Offaly, Tipperary, Waterford and Wexford. Units of the 1st Brigade include: The 2nd Brigade is headquartered in Cathal Brugha Barracks, Dublin, and has an area of territorial responsibility which includes the counties of Cavan, Donegal, Dublin, Kildare, Leitrim, Louth, Mayo, Meath, Monaghan, Sligo, Westmeath and Wicklow. Units of the 2nd Brigade include: In addition to the two brigades in the Army, there is the Defence Forces Training Centre (DFTC). This element is responsible for providing professional training to the Irish Army through three separate colleges: There are