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""
United States Marine Corps the name of the official march of the Corps, composed by John Philip Sousa. The mottos ""Fortitudine"" (With Fortitude); "By Sea and by Land", a translation of the Royal Marines' "Per Mare, Per Terram"; and "To the Shores of Tripoli" were used until 1868. The "Marine Corps emblem" is the Eagle, Globe, and Anchor, sometimes abbreviated "EGA", adopted in 1868. The Marine Corps seal includes the emblem, also is found on the flag of the United States Marine Corps, and establishes scarlet and gold as the official colors. Two styles of swords are worn by Marines: the officers' Mameluke Sword,