Background Information:
8th Brigade, CFA reorganized and redesignated as 1st Brigade, CFA. Composed of 1st, 2nd (Ottawa), 25th and 51st Batteries. Headquarters at Ottawa (MD3), 2 February 1920.
Redesignated as 1st Field Brigade, 1 July 1925.
The Royal Canadian Horse Artillery mobilized for active service as the 1st Field Brigade, RCA, on 1 September 1939.
It was redesignated 1st Field Regiment, RCA, 21 December 1939. The regiment embarked for England in December 1939 and in June 1940 it went to France as part of the Second British Expeditionary Force, reaching a point west of Le Mans before being ordered back.
It was redesignated 1st Field Regiment, RCHA, on 1 January 1941. Composed of “A”, “B”, “C” and 54th (How) Batteries.
1st (Reserve) Field Brigade converted and redesignated as 1st (Reserve) Field Regiment, 1 March 1943. The regiment landed in Sicily in July 1943 and in Italy in September 1943, providing field artillery support for the 1st Canadian Infantry Division. In March 1945 the regiment moved with the 1st Canadian Corps to North West Europe where it served until the end of the war.
Active unit disbanded, 25 August 1945.
1st (Reserve) Field Regiment redesignated as 30th Field Regiment, 1 April 1946.
On 1 June 1945 a second Active Force component of the regiment was mobilized for service in the Pacific theatre of operations under the designation 1st Canadian Field Artillery Battalion, RCA.
It was redesignated: 2nd/1st Field Regiment, RCHA, on 1 September 1945, and 71st Regiment, RCHA, on 1 March 1946.
On 27 June 1946 it was embodied in the Permanent Force.