All Countries Involved
Axis powers (Signers of the Tripartite Treaty)----Germany, Italy, Japan
Co-Signers of the tripartite Treaty---Bulgaria, Hungary, Romania, Slovakia
Countries that were annexed by, or at war with, Axis Powers before the WW2---Austria, Ethiopia, Republic of China,
Allied Powers---Australia, Brazil, Canada, Newfoundland, New Zealand, South Africa, Soviet Union, United Kingdom, United States
Supporters of the Allies---Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, Egypt, El Salvador, Guatemala, Haiti, Honduras, Iraq, Lebanon, Liberia, Mexico, Mongolia, Nicaragua, Panama, Paraguay, Peru, Saudi Arabia, Turkey, Uruguay, Venezuela
Countries that were attacked, occupied, or switched sides during the war (most countries declared their neutrality before being assaulted)---Algeria, Albania, Belgium, Burma, Czechoslovakia, Denmark, Estonia, Finland, France, Greece, Iceland, India, Iran, Latvia, Lithuania, Luxembourg, Morocco, The Netherlands, New Guinea, Norway, Philippines, Poland, Singapore, Syria, Thailand, Tunisia, Yugoslavia
Countries that remained nominally neutral---Ireland, Portugal, Spain, Sweden, Switzerland
SW