United States Marine Corps served as a convenient resource for interventions and landings to protect American interests overseas. The Corps was involved in over 28 separate interventions in the 30 years from the end of the American Civil War to the end of 19th century. They would be called upon to stem political and labor unrest within the United States. Under Commandant Jacob Zeilin's tenure, Marine customs and traditions took shape: the Corps adopted the Marine Corps emblem on 19 November 1868. It was during this time that "The Marines' Hymn" was first heard. Around 1883, the Marines adopted their current motto ""Semper Fidelis""
Assistant Commandant of the Marine Corps Assistant Commandant of the Marine Corps The Assistant Commandant of the Marine Corps (ACMC) is the second highest-ranking officer in the United States Marine Corps, and serves as a deputy for the Commandant of the Marine Corps (CMC). Before 1946, the title was known as Assistant to the Commandant. The Assistant Commandant is nominated for appointment by the President and must be confirmed via majority vote by the Senate. In the event that the Commandant is absent or is unable to perform his duties, the Assistant Commandant assumes the duties and responsibilities of the Commandant. For this reason, the Assistant