After its arrival in the UK, the battalion provided reinforcements to the Canadian Corps in the field.
The new regiment was granted the perpetuation of the 20th Battalion (Central Ontario), CEF, which had served on the Western Front with the 2nd Canadian Division.
[2][5][6][7] In 1925, new budget cuts and regulations from the Department of National Defence established that no infantry regiment of the militia was to have more than one active battalion.
This directly affected another Toronto-based regiment, The York Rangers, which had two active battalions.
This amalgamation also brought with it the additional perpetuation of the wartime 35th Battalion carried over to the new unit.