33 Canadian Brigade Group
33 Canadian Brigade Group of the Canadian Army is part of 4th Canadian Division. It commands the Primary Reserve units in eastern and northern portions of Ontario.
Brigade units
| 33 Canadian Brigade Group | Ottawa | |
| 33 Canadian Brigade Group Headquarters | Ottawa | |
| The Ontario Regiment | Armoured Reconnaissance | Oshawa |
| 30th Field Artillery Regiment, RCA | Artillery | Ottawa |
| 42nd Field Artillery Regiment, RCA | Artillery | Pembroke |
| 49th Field Artillery Regiment, RCA | Artillery | Sault Ste. Marie |
| 33 Combat Engineer Regiment | Engineer | Ottawa |
| 33 Signal Regiment | Communications | Ottawa |
| Governor General's Foot Guards | Light infantry | Ottawa |
| The Princess of Wales' Own Regiment | Light infantry | Kingston |
| The Hastings and Prince Edward Regiment | Light infantry | Belleville, Peterborough and Cobourg |
| The Brockville Rifles | Light infantry | Brockville |
| Stormont, Dundas and Glengarry Highlanders | Light infantry | Cornwall |
| The Cameron Highlanders of Ottawa | Light infantry | Ottawa |
| The Algonquin Regiment | Light infantry | North Bay and Timmins |
| 2nd Battalion, Irish Regiment of Canada | Light infantry | Sudbury |
| 33 Service Battalion | Combat Service Support | Ottawa, North Bay and Sault Ste. Marie |