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
Republic of China Marine Corps the ROCMC redeployed a brigade near the Taipei area to defend against a possible PRC decapitation strike. The Marine Corps used to be 2 divisions, 66th and 99th divisions, in size, when its doctrine focused on retaking mainland China. Since its transition to a defensive posture, the ROCMC has been downsized. The ROC Marine Corps' official motto is "永遠忠誠" (Forever Loyalty), modeled after the USMC's ""Semper Fidelis"". Republic of China Marine Corps The Republic of China Marine Corps (ROCMC; ), also officially called the Chinese Marine Corps, is the amphibious arm of the Republic of China Navy responsible for amphibious