When the general election of 2010 produced a hung parliament, the Conservative and Liberal Democrat parties agreed to form the Cameron–Clegg coalition, the first coalition in seventy years. The previous coalition in the UK before 2010 was led by Conservative Prime Minister Winston Churchill during most of the Second World War, from May 1940 to May 1945. Clement Attlee, the leader of the Labour Party, served as Deputy Prime Minister. After the general election of 2015, the nation returned to one party government after the Tories won an outright majority.