The 11th Engineer Regiment (11ER) is an Australian Army Reserve engineer regiment trained for sapper/combat engineer and construction engineer operations. While 11 ER was formed on 1 January 2014 as a result of recent Australian Army modernisation efforts, 11 ER's lineage is traced back to early Queensland volunteer engineer units as early as 1879. In 1916, 11th Field Company (11 Fd Coy) was formed and during World War I, this unit was renowned for action during the Battle of the Somme and the Hindenburg Line. During World War II, it fought the Japanese during the Kokoda Track campaign and on Bougainville Island. The Regiment's Headquarters is located at Gallipoli Barracks in Brisbane, Queensland with subunits located across Queensland. 11ER is part of 11th Brigade, attached to Forces Command.