Australian Communist Party v Commonwealth Australian Communist Party v Commonwealth Australian Communist Party v The Commonwealth, also known as the Communist Party Case, was a legal case in the High Court of Australia described as "undoubtedly one of the High Court's most important decisions." In a general election held on 10 December 1949, Prime Minister Robert Menzies led a Liberal-Country Party coalition to government pledged to dissolving the Communist Party of Australia. The Party had been banned before: following the Molotov-Ribbentrop Pact, the Party had opposed Australian involvement in the Second World War in 1939, which gave Menzies' United Australia Party-Country Party government the opportunity
Australian home front during World War II 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 resigned as prime minister and leader of the UAP on 29 August 1941. He was succeeded as prime minister by Fadden, the leader of the Country Party, who held office for a month. Billy Hughes, then aged 79, replaced Menzies as leader of the UAP. The two independents crossed the floor, bringing