[1][3][6] When the Great War broke out in August 1914, the 29th Waterloo Regiment was not mobilized for active service.

After its arrival in the UK, the battalion provided reinforcements to the Canadian Corps in the field.

On D-Day, 6 June 1944, the battalion landed in Normandy, France as part of the 9th Canadian Infantry Brigade, 3rd Canadian Infantry Division, and continued to fight in North-West Europe until the end of the war.

[2] On 1 June, 1945, the regiment subsequently mobilized the 3rd Battalion, The Highland Light Infantry of Canada, CIC, CAOF for active service with the Canadian Army Occupation Force in Germany.

The regiment were initially kitted with a green Glengarry, trews and scarlet doublet, but became kilted in 1935.

Battle honours in bold type are authorized to be emblazoned on regimental colours.