Curtin agreed instead to take a seat on a newly created Advisory War Council in October 1940. New Country Party leader Arthur Fadden became Treasurer and Menzies unhappily conceded to allow Earle Page back into his ministry. In January 1941, Menzies flew to Britain to discuss the weakness of Singapore's defences and sat with Winston Churchill's British War Cabinet. En route he inspected Singapore's defences – finding them alarmingly inadequate – and visited Australian troops in the Mid-East. He at times clashed with Churchill in the War Cabinet, and was unable to achieve significant assurances for increased commitment to Singapore's defences, but undertook morale boosting excursions to war affected cities and factories and was well received by the British press and generally raised awareness in Britain of Australia's contribution to its war effort. He returned to Australia via Canada and the United States – addressing the Canadian parliament and lobbying President Roosevelt for more arms production. After four months, Menzies returned to Australia to face a lack of enthusiasm for his global travels and a war-time minority government under ever increasing strain. In Menzies's absence, Curtin had co-operated with Fadden in preparing Australia for the expected Pacific War. With the threat of Japan imminent and with the Australian army suffering badly in the Greek and Crete campaigns, Menzies re-organised his ministry and announced multiple multi-party committees to advise on war and economic policy. Government critics however called for an all-party government. Menzies' resignation In August, Cabinet decided that Menzies should travel back to Britain to represent Australia in the War Cabinet – but this time the Labor caucus refused to support the plan. Menzies announced to his Cabinet that he thought he should resign and advise the Governor General to invite Curtin to form Government. The Cabinet instead insisted he approach Curtin again to form a war cabinet. Unable to secure Curtin's support, and with an unworkable parliamentary majority, Menzies faced continuing problems with the administration of the war effort and the undermining of his leadership by members of his own coalition. Menzies resigned as prime minister on 29 August 1941, but initially stayed on as UAP leader. Fadden Government Following Menzies' resignation, a joint UAP–Country Party meeting chose Fadden to be his successor as prime minister, even though the Country Party was the junior partner in the coalition. Menzies became Minister for Defence Co-ordination. Australia marked two years of