information:extraction
War ministry created

In May, Churchill was still unpopular with many Conservatives and most of the Labour Party. Chamberlain remained Conservative Party leader until October. By that time, Churchill had won over his doubters and his succession was a formality. He began his premiership by forming a war cabinet: Chamberlain as Lord President of the Council, Labour leader Clement Attlee as Lord Privy Seal (later Deputy Prime Minister), Halifax as Foreign Secretary and Labour's Arthur Greenwood as a minister without portfolio. In practice, these five were augmented by the service chiefs and ministers who attended most meetings. The cabinet changed in size and membership as the war progressed, a key appointment being the leading trades unionist Ernest Bevin as Minister of Labour and National Service. In response to criticisms, Churchill created and assumed the position of Minister of Defence, making him the most powerful wartime prime minister in history. He drafted outside experts into government to fulfil vital functions, especially on the Home Front. These included friends like Lord Beaverbrook and Frederick Lindemann, who became the government's scientific advisor.