Tripartite Pact. 1940. Japan joins German-Italian Axis. Joined by Hungary, Romania, Slovakia, 1940; Bulgaria, Yugoslavia, Croatia, 1941.

Warsaw Pact. 1955-91. USSR, Bulgaria, Czechoslovakia, E Germany, Hungary, Poland, Romania. Treaty for the combined defence of Eastern Europe under Soviet supreme command.

World War II. 1939-45. Allies-Britain, France, US(1941-), Russia(1941-) vs Axis-Italy, Germany, Japan, Russia(-1941). Caused by German Totalitarian expansionism resulting from WWI reparations and fear of Communism. 55M dead. 35M wounded. 30M refugees. Cost $US 1500B. Led to United Nations, Soviet power, State of Israel, atomic weapons.