five-man war cabinet Lord President of the Council Clement Attlee Lord Privy Seal Deputy Prime Minister Foreign Secretary Arthur Greenwood minister without portfolio trades unionist Ernest Bevin Minister of Labour and National Service Minister of Defence Lord Beaverbrook Frederick Lindemann major
He began his premiership by forming a five-man war cabinet which included Chamberlain as Lord President of the Council, Labour leader Clement Attlee as Lord Privy Seal (later as 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 the majority of meetings. The cabinet changed in size and membership as the war progressed, one of the key appointments being the leading trades unionist Ernest Bevin as Minister of Labour and National Service. In response to previous criticisms that there had been no clear single minister in charge of the prosecution of the war, Churchill created and assumed the additional position of Minister of Defence, making him the most powerful wartime Prime Minister in British history. He drafted outside experts into government to fulfil vital functions, especially on the Home Front. These included personal friends like Lord Beaverbrook and Frederick Lindemann, who became the government's scientific advisor.
