In the Canadian Forces, an armoury is a place where a reserve unit trains, meets, and parades. Today the Drill Hall remains home to the GGFG and The Cameron Highlanders of Ottawa (Duke of Edinburgh's Own). Both of these units are active components of Canada's Primary Reserve, providing trained volunteer soldiers to augment the Regular Army in peace and war. Each day during the summer months, it is from the Drill Hall that the Ceremonial Guard departs to initiate the Changing the Guard ceremony on Parliament Hill.