Powers (ATCP). Other ATCP tasks include escorting large sums of cash, industrial explosives and high-security prisoners as well as guarding Portlaoise Prison, Ireland's only high-security prison. In 1979 the battalion provided security at Killineer near Drogheda during Pope John Paul II visit to Ireland. In 2011 the battalion secured Islandbridge area in Dublin during Queen Elizabeth II's state visit and the secured Dublin Airport for US president Barack Obama's visit a few days later. In 2015 soldiers from the battalion assisted Gardaí searching for Dundalk teenager Ciara Breen who went missing from her home in 1997. Aid To Civil Authority Another role carried out by the 27th Infantry Battalion is Aid To Civil Authority (ATCA). In 1978 and again in 1987 the battalion provided an emergency firefighting service when Dundalk Fire Brigade went on strike. In 2001 the Battalion was deployed to assist during the foot-and-mouth disease outbreak. In late 2010 during heavy snow and a deep freeze that lasted weeks the Battalion was deployed to assist in snow relief efforts, clearing snow throughout Dundalk and Drogheda town centres as well as transporting nurses to hospitals. In 2017 the Battalion was deployed to assist in supply water to Drogheda after the main water pipe supplying the town burst leaving the town without water for several days. In 2018 during snow-Storm Emma, the Battalion was deployed assisted in transporting patients and medical staff, clearing paths and generally assisting the emergency services. The 27 Infantry Battalion assisted the Health Service Executive during the COVID-19 pandemic in 2020. Peacekeeping Soldiers of the 27th Infantry Battalion have served in numerous Peacekeeping missions around the world, most notably in Lebanon since 1978 where three of the members of the Battalion died in service of peace, Private Patrick Wright in 1988, Private Michael McNeela in 1989 and Private Sean Rooney in 2022. Sub units Headquarter Company - Aiken Barracks, Dundalk A Company - Aiken Barracks, Dundalk B Company - Gormanston Camp Support Company - Aiken Barracks, Dundalk Reserve Companies C Company - Cavan D Company - Dundalk E Company - Navan References Battalions of Ireland Military units and formations established in 1973