Culture of the United States Marine Corps
Two styles of swords are worn by Marines. The Marine Corps officers' sword is a Mameluke Sword, similar to the Persian shamshir presented to Lt. Presley O'Bannon after the Battle of Derna during the First Barbary War. After its adoption in 1825 and initial distribution in 1826, Mameluke Swords have been worn by Marine officers ever since, except during the period 1859–1875, when they were required to wear the Army's Model 1850-foot officers' sword. Upon returning to the traditional sword, many officers gave their Army swords to their senior noncommissioned officer, creating the basis for the NCO sword. Generally, Marines are the only branch where enlisted members regularly carry a sword (the Army authorizes platoon and first sergeants to carry a Model 1840 sword during some ceremonies, while the Chief of Naval Operations authorized Chief Petty Officers and above to carry an optional ceremonial cutlass with dress uniforms in 2010).
Mameluke sword
Marine Corps history states that a sword of this type was presented to Marine First Lieutenant Presley O'Bannon by the Ottoman Empire viceroy, Prince Hamet, on December 8, 1805, during the First Barbary War, in Libya, as a gesture of respect and praise for the Marines' actions at the Battle of Derna (1805). Upon his return to the United States, the state of Virginia presented him with a silver-hilted sword featuring an eaglehead hilt and a curved blade modeled after the original Mameluke sword given to him by Hamet. Its blade is inscribed with his name and a commemoration of the Battle of Tripoli Harbor.