1. WWI (1914-1918)-US & Britain
2. WWII-US & Britain
russia
In 1914-1918, America fought against the German Empire and Austria-Hungary. In 1941-1945, the belligerents were Nazi Germany, and the Japanese Empire.
No. The US fought against Hitler. We were allies of the UK.
-1918
During World War I, they were at war from 1914 until 1918. During World War II, it was 1941-1945.
Czechoslovakia was occupied by Germany on 15 March 1939. The government in exile joined the Allies on 16 December 1941.
The US has only fought Germany in WW I and WW II, so twice.
There has been two 'world wars'. World War 1 from 1914 until 1918 (known at the time as The Great War) which the USA joined as one of the Allies in April 1917. World War 2 ran from 1 September 1939 until 2 September 1945 and the US joined as one of the Allies on 8 December 1941. The result of both of these wars was an Allied victory.
Because the US and USSR shared a common enemy. Germany invaded the USSR in June, 1941, and in December, 1941 Germany declared war on the US. My enemy's enemy is my friend.
1914 to 1918 and 1939 to 1945 These are the most common years referred to.... I was born in 1941 Any children born in these time periods are referred to as war babies
The primary allies were: Britain, Russia (USSR), China, Australia, New Zealand, Canada.
WW I 1914 to 1918 (but USA 1917 and 1918 only) WW II 1939 to 1945 (but USA Dec 1941 to 1945 only)