1939-1941: Europe was fighting World War II. The U. S. claimed neutrality, but actions speak louder than words. 1941-1945: The U. S. was at war against the Axis Powers of Germany, Japan and sometimes Italy (whenever Mousolini thought that was the side that was winning). The wartime economy brought an end to the Great Depression that started in October, 1929.
The allies of Hitler in WW2 were the counties of Italy, Japan, and at first Russia. Italy was a communist country dictated by Benito Mousolini. "Mousolini" may be spelt wrong. Russia was known as the Soviet Union, and was also a communist country. However Hitler and the Nazi party betrayed the Russians shortly after they invaded Polland. The Allies opposing force was known as the Axis powers witch include the counties above; Germany, Japan, Russia, Italy. In that order as far as having influence on the war overall.
World War 2 was a military war when Nazi controlled Germany went on a campaign of conquest in Europe. Nazi Germany allied with Fascist Mousolini lead Italy, and Japan as the Axis powers with the primary Allied forces consisting of Great Britian, French Resistance, Russia (Soviet Union), and partisan forces.The primary activties were:European Campaign (Britian, France, Germany, Soviet Union). This became a war of Two Fronts for Germany with Allies on the Western Front and Soviet forces on the eastern front. The European campaign started technically with the invasion of Poland and the "Beginning of the End" is usually credited with the D-Day invasion of Normandy. In addition the attempted conquest of Soviet territory largely debilitated the German army due to poor preparation for the harsh winter.African Campaign (Allied Forces under Patton and German Forces under Rommel) Largely overlooked an active campaign in North Africa was underway.Pacific Campaign (USA vs Japan) A complex series of island and navel battles between Adminral Yamamoto and the US Navy.China Mainland Incursion: Japan in an attempt for a land grab invaded China. Some of the largest civilian casualties occured in China along with Nazi concentration camps resulted in the largest Civilan casualities in recorded history. Another often overlooked portion of the war.