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
Operation Jupiter (Norway) attention away from the preparations for Operation Torch, the invasion of north Africa, by creating the impression that troops based in Scotland were preparing to invade Norway. Operation Jupiter (Norway) Operation Jupiter was the code name for a plan originating in 1941 for an invasion of northern Norway and Finland by Allied forces during the Second World War. The first versions of the plan were code named Operation Dynamite, Operation Ajax and Operation Marrow. Devised and vigorously promoted by Sir Winston Churchill, the Prime Minister of the United Kingdom, the plan was opposed by all the senior British and Allied