United Kingdom WW2 Propaganda Collection: The UK entered World War II by declaring war on Germany in 1939, after it had invaded Poland and Czechoslovakia. In 1940, Winston Churchill became prime minister and head of a coalition government. Despite the defeat of its European allies in the first year of the war, the UK continued the fight alone against Germany. In 1940, the RAF defeated the German Luftwaffe in a struggle for control of the skies in the Battle of Britain. The UK suffered heavy bombing during the Blitz. There were also eventual hard-fought victories in the Battle of the Atlantic, the North Africa campaign and Burma campaign. UK forces played an important role in the Normandy landings of 1944, achieved with its ally the US. After Germany’s defeat, the UK was one of the Big Three powers who met to plan the post-war world; it was an original signatory to the Declaration of the United Nations. The UK became one of the five permanent members of the United Nations Security Council. However, the war left the UK severely weakened and depending financially on Marshall Aid and loans from the United States. (Wikipedia)