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
Marine Corps League Magazine", which carried League news in every issue. The circulation of the "Leatherneck Magazine" at the time was over 5,200. Through the "Leatherneck Magazine" and the recruiting service of the U.S. Marine Corps, the information of the League's activities was disseminated and through these mediums the Major General Commandant's hope of building the Marine Corps Reserve to an appreciable size. Eventually, the League would produce its own official publication, known as the "Semper Fi Magazine", but every now and then, the League is allowed to contribute articles to the "Leatherneck Magazine". The "Semper Fi Magazine" is published on a quarterly