4th Canadian Division, Army in Ontario


“Prepared in peace and war”

Resources @ Hand 

Who We Are

The 4th Canadian Division (4 Cdn Div) is one of the six major formations that report to Army headquarters in Ottawa. 4 Cdn Div is responsible to provide combat ready land forces in accordance with assigned tasks, conduct general purpose training in preparation for various land operations, and provide support services to other organizations as directed or as mutually arranged. It includes all Regular and Reserve Force units in Ontario, with the exception of a portion of North Western Ontario, which falls under 3rd Canadian Division (3 Cdn Div).

Our Mission

The mission of 4 Cdn Div is to generate and maintain, at designated states of readiness, combat ready, multi-purpose land forces to meet Canada’s defence objectives, both at home and abroad. Members of 4 Cdn Div take part in continuous, challenging, individual and collective training to prepare them to achieve this mission.

Formations and Units

4 Cdn Div is spread across 46 Ontario communities and comprises more than 13,000 men and women, including

  • 5,880 Regular Force members
  • 5,980 Reserve Force members
  • 620 Canadian Rangers
  • 1,140 civilian employees

Browse all Ontario units and formations by location.

The Regular Force units (with members working full-time) are most commonly found on bases and sites across the province. The two largest concentrations are the 4th Canadian Division Support Base Petawawa in the Ottawa Valley and Canadian Forces Base (CFB) Kingston on the north shore of Lake Ontario.

The 4 Cdn Div Headquarters is found at the Denison Armoury on the grounds of Downsview Park in north Toronto.

Command Team

Commander, 4th Canadian Division

Commander: Brigadier-General S.M. Cadden, CD

Sergeant Major, 4th Candian Division

Sergeant Major: Chief Warrant Officer Stuart Hartnell MMM, MSM, CD

Contact Us

4th Canadian Division Headquarters
The LCol George Taylor Denison III Armoury
1 Yukon Lane Toronto
Ontario, M3K 0A1

Phone: Switchboard: 416-633-6200 (Operator 0)

Media inquiries

Phone: 416-633-6200 ext. 5505

You can also contact a public affairs representative with a specific formation or unit.

Media Liaison Office: 1-800-377-0811

Hours of Operations: Monday - Friday 8:00 a.m. - 4:00 p.m.


The competitors of the 2017 Canadian Hercules

Canadian soldier lifts his way to Canada’s Strongest Natural Man competition in Calgary

Kingston, Ontario — Physical training has always been a key component in the profession of arms. It allows soldiers to perform at their best, maximizing the ability of the Canadian Armed Forces (CAF) to defend Canada at home and abroad.
September 1, 2017

The Canadian Armed Forces continues to be a part of the Canadian National Exhibition

The Canadian Armed Forces continue a long tradition with the Canadian National Exhibition in Canada’s 150th year

Toronto, Ontario — The Canadian National Exhibition (CNE) is an annual 18-day agricultural fair, traditionally marking the end of summer in Toronto. Beyond the annual event, there is a strong underlying relationship between Canada’s military, the CNE and the surrounding area we now know as “Exhibition Place”.
August 16, 2017

Members of 3rd Canadian Ranger Patrol Group prepare to go on evening patrol

Canadian Rangers Move In To Assist In Wapekeka Suicide Crisis

Wapekeka First Nation, Ontario — In an unprecedented move, the Canadian Army has sent Canadian Rangers to a small, isolated First Nation in Northern Ontario to provide help in a suicide crisis.
June 26, 2017

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