In January 1918 Major-General William Otter recommended to the Government of Canada that a perfect situation existed in which to reorganize the active militia.

[2] The results of this meeting were worked into the recommendations of the Otter Committee and on 2 February 1920 the Government of Canada authorized the creation of the 15th Brigade, Canadian Field Artillery.

In March 1934 the 15th Brigade received a new home, the Bessborough Armoury, a modern facility that they shared with the British Columbia Hussars.

[5] In June 1928 in order to save money and increase their range, the 5th Battery of the 15th Brigade became one of the first Canadian militia artillery units to experiment with towing guns using trucks.

[4] Major Chutter's report at the end of the exercise showed that use of trucks was much less expensive than using horses and that they were able to accomplish three times the training.

[7] In his report Major Treatt made many recommendations including the creation of four new coastal artillery forts to guard the Port of Vancouver.

In World War I members of the Naval Reserve and reservists from Cobourg, Ontario, had manned the coastal defence batteries in Vancouver.

[11] Both the coast defence and anti-aircraft guns were supported by the 1st Searchlight Regiment, RCA, formerly the British Columbia Hussars.

[15] Examination areas were set up where ships requesting entrance to the harbour had to stop and submit to an inspection by the Royal Canadian Navy.

[16] If a ship failed to stop for inspection the Navy would signal the artillery batteries to fire a round in front of the offending vessel and if necessary sink it.

[18] After the Battle of Midway the Japanese Navy lost much of its offensive power and was no longer considered a significant threat to the west coast of Canada.

[18] This combined with the need for manpower in Europe, after the invasions of Sicily and Normandy, lead to the decision to shut down Vancouver's coast defence forts.

[19] After the war the regiment returned to reserve service and remained coastal artillery, training with the guns at the Point Grey Fort.

[23] Members also participated in Operation Podium, the Canadian Forces mission to assist with security for the 2010 Winter Olympics in Vancouver, British Columbia.