A number of the class remained in civilian government and commercial service for years after the war, although most had been disposed of by the early 1960s.

The RCN's Battle-class trawlers formed part of the Canadian naval response to Admiralty warnings to Canada about the growing German U-boat threat to merchant shipping in the western Atlantic.

[2] Twelve vessels were ordered on 2 February 1917 from two shipyards, Polson Iron Works of Toronto and Canadian Vickers of Montreal.

[7] For the defence of shipping in Canadian waters in 1918, the entire Battle class was assigned to work out of Sydney, Nova Scotia.

[13] The twelve trawlers remained in commission with the RCN until 1920, and in early 1919, three of them (Armentières, Givenchy, and Thiepval) accompanied Stadacona on a trip to the west coast via the Panama Canal.

[17] In 1924, Thiepval undertook a lengthy trip across the North Pacific to the Soviet Union and Japan to support an ultimately unsuccessful British round-the-world flight attempt.

[4] Thiepval struck an uncharted rock in the Broken Islands of Barkley Sound on British Columbia's west coast, and sank.

[19] By 1939, only one Battle-class trawler, Armentières, remained in active naval service, although Festubert was in reserve and Ypres had just emerged from a refit to become a gate vessel for Halifax's anti-submarine defences.

The east coast trawlers served primarily as gate vessels at Nova Scotia ports including Halifax and Sydney.

[9] Following the Second World War, the trawlers that had served with the RCN were soon decommissioned and either sold or returned to civilian government service.