World War II was the biggest and deadliest war in history, even more devastating than World War I, it was the most destructive international conflict involving more than 30 countries. With the principal combatants were of the Axis powers such as Germany, Italy, and Japan, and their allies: France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China. World War II was sparked by the 1939 Nazi invasion of Poland, dragging on for six years, taking the lives of 60 to 80 million people, including million Jews murdered in Nazi concentration camps known as the Holocaust. This encompasses civilian deaths from land battles, aerial bombardment, political and racial executions, war-induced disease and famine, and the sinking of ships probably exceeded battle casualties. The war ended in 1945, when the allies defeated Nazi Germany, leaving a legacy that includes the spread of communism, and the global shift in power from Europe to two rival superpowers–the United States and the Soviet Union.
WWII Impact on the American Economy