Britain Declares War on Germany

Neville Chamberlain's fateful decision

World War II begins

On September 3, 1939, Great Britain declared war on Germany, marking the beginning of World War II. The decision to go to war was made by British Prime Minister Neville Chamberlain, who had previously pursued a policy of appeasement towards Adolf Hitler.

Chamberlain had hoped that by appeasing Hitler, he could avoid war. However, Hitler's demands became increasingly aggressive, and Chamberlain eventually realized that war was inevitable. The British declaration of war was a major turning point in World War II, and it set the stage for a long and bloody conflict.