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).
Model 1850 Army Staff &amp; Field Officers' Sword
The Model 1850 Army Staff and Field Officer's Sword was carried by all members of staff departments,
Field Grade officers of Artillery and Infantry, Company Grade Officers of Light Artillery, Staff Officers and
Aides-de-Camp between 1850 and 1872. It was based on a French pattern. Though other swords were by regulation allowed, this model was by far the most popular sword carried by officers during the American Civil War. The Staff and Field Officers' Sword is distinct from the Model 1850 Army Foot Officer's Sword.