4 Canadian Mechanized Brigade Group was a formation of the Canadian Army, then Mobile Command of the unified Canadian Forces. It was part of the European formation known as Canadian Forces Europe. The formation served as the main forward deployed land element of Canada's armed forces, and was stationed in West Germany from 1957 until it was disbanded in 1993.

The Canadian Army is the command responsible for the operational readiness of the conventional ground forces of the Canadian Armed Forces. It maintains regular forces units at bases across Canada, and is also responsible for the Army Reserve, the largest component of the Primary Reserve. The Army is headed by the Commander of the Canadian Army and Chief of the Army Staff, who is subordinate to the Chief of the Defence Staff. The Army is also supported by 3,000 civilian employees from the public service.