General Smedley Butler Speaks to the Veterans Bonus Army, 1932

Context:

In the years after World War I, a long battle over providing a bonus payment to WWI veterans raged between Congress and the White House. Presidents Harding and Coolidge both vetoed early attempts to provide a bonus to WWI veterans. Congress overrode Coolidge’s veto in 1926, passing the World War Adjusted Compensation Act, otherwise known as the Bonus Act. The act promised WWI veterans a bonus based on length of service between April 5, 1917 and July 1, 1919; $1 per day stateside and $1.25 per day overseas, with the payout capped at $500 for stateside veterans and $625* for overseas veterans. The catch was this bonus would not pay out until each veteran’s birthday in 1945, paying out to his estate if he should die before then. Although veterans were allowed to borrow against the bonus certificate beginning in 1927, by 1932, banks were short on credit to give. 

In May 1932, jobless WWI veterans organized a group called the “Bonus Expeditionary Forces” (BEF) to march on Washington, DC. Suffering and desperate, the BEF’s goal was to get the bonus payment now, when they really needed the money. Led by Walter W. Walters, the veterans set up camps and occupied buildings in various locations in Washington, DC. The largest camp was a shantytown on the Anacostia Flats, across the river from Washington’s Navy Yard. By summer, at least 20,000 people had joined the camps, with some estimates putting the total number above 40,000. Many were joined by their families. But the camps attracted an undesirable element as well. President Hoover later claimed “the march was largely organized and promoted by the Communists, and included a large number of hoodlums and ex-convicts bent on raising a public disturbance.” Using scrap wood and other salvaged materials, the protesters constructed a vast field of shacks in view of the Capitol dome, prepared for a siege of Congress.

Smedley Butler is famous for the essay "War Is A Racket" also his involvement in an attempted coup of FDR that he blew the whistle on.

The Business Plot, also called the Wall Street Putsch[1] and the White House Putsch, was a political conspiracy in 1933, in the United States, to overthrow the government of President Franklin D. Roosevelt and install Smedley Butler as dictator.[2][3] Butler, a retired Marine Corps major general, testified under oath that wealthy businessmen were plotting to create a fascist veterans' organization with him as its leader and use it in a coup d'état to overthrow Roosevelt. In 1934, Butler testified under oath before the United States House of Representatives Special Committee on Un-American Activities (the "McCormack–Dickstein Committee") on these revelations.[4] Although no one was prosecuted, the congressional committee final report said, "there is no question that these attempts were discussed, were planned, and might have been placed in execution when and if the financial backers deemed it expedient."