HMCS Armentières was one of twelve Battle class naval trawlers used by the Royal Canadian Navy (RCN). Named after the Battle of Armentières, she was built by Canadian Vickers, at Montreal, and was commissioned on 5 June 1918. Along with , and , Armentières accompanied on a trip to the west coast via the Panama Canal in early 1919. Shortly after arriving in Esquimalt, British Columbia, Armentières was refitted to increase its utility as a training ship, with a captain's cabin built abaft the wheelhouse, and two cabins built below the upper deck. Decommissioned on 28 October 1919, the ship was recommissioned in 1923, but on 2 September 1925 sank in Pipestem Inlet, near Barkley Sound. Salvaged over a month later, Armentières was recommissioned again and resumed her service. Frequently functio