United States Marine Corps A decade later, in the Mexican–American War (1846–1848), the Marines made their famed assault on Chapultepec Palace in Mexico City, which would be later celebrated as the "Halls of Montezuma" in the Marines' hymn. In the 1850s, the Marines would see further service in Panama and Asia, attached to Matthew Perry's East India Squadron on its historic trip to the Far East. The Marine Corps played a small role in the Civil War (1861–1865); their most prominent task was blockade duty. As more and more states seceded from the Union, about a third of the Corps' officers left the United
Sergeant Major of the Marine Corps Major of the Marine Corps was authorized (which features three stripes, the Eagle, Globe, and Anchor flanked by two five-point stars in the center, and four rockers) as opposed to the standard Sergeant Major rank insignia (which features three stripes, one five-point star in the center, and four rockers), which was used for the rank from the post's creation in 1957 to 1970. While "Sergeant Major of the Marine Corps" is the full wording of the rank, the verbal address for this is commonly "Sergeant Major". The Sergeant Major of the Marine Corps is selected by the Commandant of the