Gavin Long argues that the Labor opposition urged greater national self-reliance through a buildup of manufacturing and more emphasis on the Army and RAAF, as Chief of the General Staff, John Lavarack also advocated. In November 1936, Labor leader John Curtin said "The dependence of Australia upon the competence, let alone the readiness, of British statesmen to send forces to our aid is too dangerous a hazard upon which to found Australia's defence policy.". According to John Robertson, "some British leaders had also realised that their country could not fight Japan and Germany at the same time." But "this was never discussed candidly at…meeting(s) of Australian and British defence planners", such as the 1937 Imperial Conference.