World War II by country World War II by country Nearly every country and territory in the world participated in World War II, with the exception of only a few nations which remained neutral. The Second World War pitted two alliances against each other, the Axis powers and the Allied powers. The leading Axis powers were Nazi Germany, the Kingdom of Italy and the Empire of Japan; while the United Kingdom, the United States, the Soviet Union and China were the "Big Four" Allied powers. The countries involved in or affected by World War II are listed here alphabetically, with a description of their role
World War II by country Queen of Tonga, Salote Tupou III, put her island country's resources at the disposal of Britain and was a loyal supporter of the Allied cause throughout the war. The Emirate of Transjordan was a British mandate territory, and the Transjordanian forces were under British command during the war. See Caribbean Islands. See North African Campaign. Turkey was neutral until several months before the end of the war, at which point it joined the Allied powers. Prior to the outbreak of war, Turkey signed a Mutual Aid Pact with France and Britain in 1939. After the German invasion of France, however,