Why did Churchill replace chamberlain as Britain's new prime minister shortly after world war 2 began

Winston Churchill, First Lord of the Admiralty, is called to replace Neville Chamberlain as British prime minister following the latter's resignation after losing a confidence vote in the House of Commons.

In 1938, Prime Minister Chamberlain signed the Munich Pact with Nazi leader Adolf Hitler, giving Czechoslovakia over to German conquest but bringing, as Chamberlain promised, "peace in our time." In September 1939, that peace was shattered by Hitler's invasion of Poland. Chamberlain declared war against Germany but during the next eight months showed himself to be ill-equipped for the daunting task of saving Europe from Nazi conquest. After British forces failed to prevent the German occupation of Norway in April 1940, Chamberlain lost the support of many members of his Conservative Party. On May 10, Hitler invaded Holland, Belgium, and the Netherlands. The same day, Chamberlain formally lost the confidence of the House of Commons.