Explanation

Woodrow Wilson is the President during World War I

 He served as the 28th president of the United States from 1913 to 1921.

World War I was a global war originating in Europe 

that lasted from 28 July 1914 to 11 November 1918.

Additional information:

During World War II, two atomic bombs over the Japanese cities 

• First Bomb, the Little Boy type of bomb was dropped in Hiroshima on 6 August 1945 
• Second bomb, the Fat Man type of bomb was dropped on Nagasaki on August 9, 1945

The Second World War was a global war

That started in 1939 and ended in 1945