Smedley Darlington Butler (July 30, 1881 – June 21, 1940) was a Major General in the U.S. Marine Corps (the highest rank authorized at that time), an outspoken critic of U.S. military adventurism, and at the time of his death the most decorated Marine in U.S. history. During his 34-year career as a Marine, he participated in military actions in the Philippines, China, in Central America and the Caribbean during the Banana Wars, and France in World War I.
In 1933, he became involved in a controversy known as the Business Plot, when he told a congressional committee that a group of wealthy industrialists were planning a military coup to overthrow Franklin D. Roosevelt. The purported plotters wanted Butler to lead a mass of armed veterans in a march on Washington and then become a dictator. Butler never met with any of the principals, and the individuals supposedly involved all denied the existence of a plot. The media ridiculed the allegations.