The 2nd Brigade (known as 2nd (Eastern) Brigade until the 2012 reorganisation of the army) (Irish: 2ú Briogáid) is a brigade of the Irish Army. The brigade headquarters are in Cathal Brugha Barracks in Dublin. 2nd Brigade provides security to various vital installations in its area of responsibility, including; Government Buildings, Áras an Uachtaráin (Residence of the President), foreign embassies, Dublin Airport, Dublin Docks (Dublin Port, Dún Laoghaire) and Knock Airport.