During World War I , the dockyard underwent significant expansion , acting as headquarters for the Royal Canadian Navy and as the North American headquarters for the Royal Navy . During the 1917 Halifax Explosion , the dockyard was severely damaged , with many of its buildings demolished . New ones were swiftly erected for the war effort . However , following the end of the war in 1918 , the number of dockyard staff was reduced significantly
Halifax Explosion
Halifax Explosion
CFB Halifax