The United Kingdom

One of the main players in World War 2 and a crucial ally of the Allies was the United Kingdom. The nation possessed a sizable naval and air force, and its army participated in World War 1 combat. Britain's expansive colonial empire served as a major economic driver. After Germany invaded Poland on September 1, 1939, they entered the conflict. It fought against Japan in Asia and Nazi Germany in Europe. They participated in and made a considerable contribution to both the European and Pacific theaters of the war against the Axis.

They were also the ones that resisted Germany for six years, despite the possibility of suffering personal setbacks and even at the peril of their empire. The Special Operations Executive (SOE), a covert group that engaged in sabotage and guerilla warfare against the Axis countries, was also founded by the UK. The military of the nation killed or injured nearly 300,000 German soldiers, suffering severe casualties. The German infrastructure was also severely bombed in Dresden by the British air force.