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""
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