The ARW was deployed in Liberia in the aftermath of the Second Liberian Civil War as part of a peacekeeping contingent of more than 400 troops from the Irish Army, in turn part of the mixed Irish-Swedish Force Reserve Battalion of the United Nations mission in the country, UNMIL (2003). The ARW's area of operations (AO) was "all of Liberia", consisting of 4.7 million people and 111,369 sq km (43,000 sq mi).