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
Hispanics in the United States Marine Corps the Meritorious Service Medal with three gold stars, the Navy and Marine Corps Commendation Medal, the Joint Service Achievement Medal, and the Navy and Marine Corps Achievement Medal. On April 25, 2007, SgtMaj Estrada stepped down from his post as Sergeant Major of the Marine Corps. Aside from Sergeant Major of the Marine Corps, master gunnery sergeant (MGySgt) and sergeant major are the highest enlisted ranks in the Marine Corps; however, there are far fewer master gunnery sergeants than sergeants major. One of the major differences between the two E-9 ranks is that master gunnery sergeants retain their Military Occupational