The United States involvement lasted from 1917-1919.
Start: 1914. End: 1918.
September 1939
World War 2 began September 1939 and ended August 1945.
Start - september 1st 1939 Ended september 2nd 1945
in 1914 and it ended in 1918
Hitler survived world war 1.
World War II ended in 1945
neither1914 start1918 end
1945
1945
1918
There was no world war 3 and hopefully there will never be one!