5 December 1957, the Minister of National Defence announced in the House of Commons that the divisional headquarters would be reduced to nil strength. Shortly thereafter General Rockingham was transferred to Quebec Command and on 30 April 1958, the Headquarters of 1st Canadian Infantry Division was disbanded. In 1988, a new era for the Division began when the Government of Canada announced the intention to consolidate its military commitments to Europe in the Central Region. The reformation in November 1989 followed the Canadian government's decision to end the Canadian Air-Sea Transportable Brigade Group (CAST) commitment to reinforce Northern Norway.[8] 5 Canadian Mechanized Brigade Group, based in Quebec, was thus available for other tasks. The CAST rapid-reinforcement commitment had been encountering problems, most graphically demonstrated during Exercise Brave Lion in 1986, which prompted Canada to start formal consultations with NATO about consolidating the CAST Brigade and 4 Canadian Mechanized Brigade Group, based in southern Germany. The two separate forces would have meant critical logistical and medical support needs would have gone unmet in case of real war. The hole thus created by the removal of the CAST Brigade Group was filled, to a degree, by the creation of a NATO Composite Force (NCF) to which Canada promised a battalion group. The headquarters was established, with both 4 Brigade and 5 Brigade under command, at Kingston, Ontario, with a forward detachment at Lahr in Germany where 4 Brigade was based. The main headquarters was intended to move gradually from Kingston to Lahr over a period of time, though this never, in the event, took place. With the division having only two brigades, it was assumed that in wartime, either a German or US brigade would be assigned to provide the necessary third manoeuvre element. Although during NATO command post exercises a divisional order of battle was used that nominally included the 1 Canadian Mechanized Brigade Group as the third Maneuver brigade, field training and exercises were conducted with this notion in mind. Some changes were necessary to the two brigades, as 5 Brigade had only three-quarters of 4 Brigade's personnel and equipment with the support organizations held at the divisional level. Once reinforcements had arrived from Canada, each brigade would have had one small armoured regiment (two squadrons, each 20 tanks), and two four-company infantry battalions. Divisional troops would have been a mix of former 4 Brigade and 5 Brigade units along