quantity of money was limited, defence against air attack, trade protection and the defence of overseas territories were more important and had to be secured before Britain could support allies in the defence of their territories. The "continental hypothesis" came fourth and the main role of the army was to protect the empire, which included the anti-aircraft defence of the United Kingdom (with the assistance of the TA). In 1938, "limited liability" reached its apogee, just as rearmament was maturing and the army was considering the "new conspectus", a much more ambitious rearmament plan. In February 1938, the CID ruled that planning should be based on "limited liability"; between late 1937 and early 1939, equipment for the five-division field army was reduced to that necessary for colonial warfare in the Far East. In Europe, the field force could only conduct defensive warfare and would need a big increase in ammunition and the refurbishment of its tank forces. The field force continued to be the least-favoured part of the least-favoured military arm and in February 1938, the Secretary of State for War, Leslie Hore-Belisha, warned that possible allies should be left in no doubt about the effectiveness of the army. The re-armament plans for the field force remained deficiency plans, rather than plans for expansion. The July 1934 deficiency plan was estimated at £10,000,000 but cut by 50 percent by the cabinet; by the first rearmament plan of 1936, the cost of the deficiency plan for the next five years had increased to £177,000,000. In the first version of the "new conspectus", spending was put at £347,000,000, although in 1938 this was cut to £276,000,000, still substantially more than the deficiency plan for 1936 but much of this sum was for anti-aircraft defence, a new duty imposed on the army. Continental commitment Obtaining equipment for the Field Force benefited from plans for the TA which, sometimes covertly, was used as a device to get more equipment which could be used by the regular army. At first it was admitted in the deficiency programmes of 1935–1936, in which an expansion of the TA in three stages to twelve divisions, was to complement the five regular divisions. The Cabinet postponed this plan for three years, during which the policy of limited liability precluded such developments, except for the purchase of the same training equipment for the TA as that used by the army,