First few weeks of PM

• 15 March 1939


  Hitler invaded Czechia , Bohemia and Moravia with Slovakia
• September 1939


  Hitler's forced invaded Poland

  Chamberlain responded with a British declaration of war on Germany according to Anglo Polish Agreement signed on 29 March 1939
• May 1940


  Unsuccessful Norwegian campaign- Norway Debate / Narvik Debate
• Chamberlain resigned, but still led the Conservative Party until the new PM was elected
• 10 May 1940


  Churchill became the PM with limited from his peers and King George VI