Final answer:
In 1932, World War I veterans asked Congress for early payment of their retirement bonus. They marched on Washington and established camps to demand their bonuses.
Step-by-step explanation:
In 1932, veterans asked Congress for early payment of their retirement bonus. Over 15,000 World War I veterans marched on Washington, demanding their veteran bonuses, which were not due to be paid until 1945. The group established camps in vacant federal buildings and Anacostia Flats near the Capitol building.