The Allied defeat during the Greek Campaign indirectly contributed to a change of government in Australia. Prime Minister Menzies' leadership weakened during the lengthy period he spent in Britain during early 1941, and the high Australian losses in the Greek Campaign led many members of his United Australia Party (UAP) to conclude that he was not capable of leading the Australian war effort. Menzies resigned on 26 August, after losing the confidence of his party and Arthur Fadden from the Country Party (the UAP's coalition partner) became Prime Minister. Fadden's government collapsed on 3 October, and an Australian Labor Party government under the leadership of John Curtin took power.