The 5th Battalion was authorized on 10 August 1914 and embarked for Great Britain on 29 September 1914.
It entered the theatre of operations in France on 14 February 1915, where it fought as part of the 2nd Canadian Infantry Brigade, 1st Canadian Division in France and Flanders until the end of the war.
The battalion was disbanded on 15 September 1920.
The 3rd Battalion was awarded the following battle honours:
Ypres 1915, 1917
Gravenstafel
St. Julien
Festubert 1915
Mount Sorrel
Somme 1916
Thiepval
Ancre Heights
Arras 1917, 1918
Vimy 1917
Arleux
Hill 70
Passchendaele
Amiens
Scarpe 1918
Drocourt –Queant
Hindenburg Line
Canal du Nord
Pursuit to Mons
France & Flanders 1915, 1918
Source : 5th_Battalion_(Western_Cavalry),_CEF
Numeral Collar Badge
Formation Patche
Cap Badge