The U.S. Marine Corps was created on November 10, 1775. The Marine Corps started as infantry combat forces serving aboard naval vessels as ship’s security and to conduct offensive and defensive combat during boarding actions, acting as sharpshooters and conducting amphibious assaults.
The Marines fully developed and used the tactics of amphibious landings in World War II, most notably in the Pacific Island Campaign.
Marine tactics and doctrine focus on aggressiveness and the offensive. The Marines have been central in developing groundbreaking tactics for maneuver warfare; they can be credited with the development of helicopter insertion doctrine and modern amphibious assault.
Marine warfare specialties today include jobs in intelligence, aviation, logistics, artillery, infantry, communications, construction, ordnance disposal, and tank warfare.
The Marine Corps motto is “Semper Fidelis,” which means “always faithful.”
There are approximately 198,000 Marines currently serving across the globe.