Woodrow Wilson
There was no single leader during WW1. Each country had their own leader.
David Lloyd George was the leader of Brittain during ww1
Kaiser Wilhelm II
Woodrow Wilson
Franz Joseph
Kaiser Wilhelm II
John Joseph Pershing commanded the American Expeditionary Forces in World War I. He holds the first United States officer service number (O-1), and was nicknamed Black Jack.
John J. Pershing
King George V
King George the 5th.
Kaiser Wilhelm the Third was the leader of Germany during WW1