created a couple of months earlier, led the Coalition into the 1940 election and suffered an eight-seat swing, losing the slender majority he had inherited from Lyons. The result was a hung parliament, with the Coalition two seats short of a majority. Menzies managed to form a minority government with the support of two independent MPs, Arthur Coles and Alex Wilson. Labor, led by John Curtin, refused Menzies's offer to form a war coalition, and opposed using the Australian army for a European war, preferring to keep it at home to defend Australia. Labor agreed to participate in the Advisory War Council. Menzies sent the bulk of the army to help the British in the Middle East and Singapore, and told Winston Churchill the Royal Navy needed to strengthen its Far Eastern forces. Just before the September 1940 election, on 13 August 1940, three members of Menzies's cabinet had been killed in an air crash—the Canberra air disaster—along with General Brudenell White, Chief of the General Staff; two other passengers and four crew. This event weakened Menzies's government. From 24 January 1941, Menzies spent four months in Britain discussing war strategy with Churchill and other Empire leaders, while his position at home deteriorated. En route to the UK he took the opportunity to stop over to visit Australian troops serving in the North African Campaign. Professor David Day, an Australian historian, has posited that Menzies might have replaced Churchill as British prime minister, and that he had some support in the UK for this. Support came from Viscount Astor, Lord Beaverbrook and former WWI Prime Minister David Lloyd George, who were trenchant critics of Churchill's purportedly autocratic style, and favoured replacing him with Menzies, who had some public support for staying on in the War Cabinet for the duration, which was strongly backed by Sir Maurice Hankey, former WWI Colonel and member of both the WWI and WWII War Cabinets. Writer Gerard Henderson has rejected this theory, but history professors Judith Brett and Joan Beaumont support Day, as does Menzies's daughter, Heather Henderson, who claimed Lady Astor "even offered all her sapphires if he would stay on in England". Menzies came home to a hero's welcome. However, his support in Parliament was less certain. Not only did some Coalition MPs doubt his popularity in the electorate, but they also believed that a national unity government was the only long-term solution.