Marine Detachment Leavenworth

• Historic Roots: Marine Detachment Leavenworth was established in 1880 at the United States Disciplinary Barracks, Fort Leavenworth, Kansas, making it one of the oldest Marine detachments assigned to an Army post. • Guarding Military Prisoners: The primary mission of the Marine Detachment was to provide security for the United States Disciplinary Barracks, the Department of Defense's only maximum-security military prison. • Unique Army-Marine Relationship: Unlike most Marine detachments that serve on Navy ships or facilities, Leavenworth Marines operated on an Army post, fostering a unique inter-service working relationship. • Famous Prisoners: Over the years, Marines at Leavenworth guarded many notable inmates, including military personnel convicted of high-profile crimes during both World Wars and later conflicts. • Distinct Uniforms: Marines stationed at Leavenworth wore their traditional dress blues, standing out among the Army personnel and becoming a familiar sight in the area. • Legend of the “Rock Crusher”: An often-repeated story claims that early prisoners at Leavenworth, guarded by the Marines, were forced to break rocks as punishment, earning the prison the nickname "The Rock Crusher." • Drill and Ceremony: The Marine Detachment was renowned for its sharp drill routines and military discipline, often participating in parades and ceremonies on the post, impressing both Army and civilian observers. • World War II Expansion: During World War II, the population of the Disciplinary Barracks swelled, and the Marine Detachment was expanded to meet the increased security needs. • Disbandment: The Marine Detachment at Leavenworth was officially disbanded in 1966, as the Marine Corps restructured its personnel assignments and the mission was assumed by Army Military Police. • Enduring Legacy: Despite its disbandment, the legacy of Marine Detachment Leavenworth lives on in Marine Corps lore, as a testament to the Corps' adaptability and service in unique billets throughout U.S. military history.