World War I veterans begin to assemble in Washington, D.C., in the Bonus Army to request cash bonuses promised to them to be paid in 1945.

World War I, or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. Major theatres of war included Europe and the Middle East, and well as parts of Africa and the Asia-Pacific. One of the deadliest conflicts in history,…