USM meaning in Military and Defence ?

Answer: What is United States Marines mean?

The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, armor, artillery, aerial and special operations forces. The U.S. Marine Corps is one of the eight uniformed services of the United States.

The Marine Corps has been part of the U.S. Department of the Navy since 30 June 1834 with its sister service, the United States Navy. The USMC operates installations on land and aboard sea-going amphibious warfare ships around the world. Additionally, several of the Marines' tactical aviation squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy carrier air wings and operate from the aircraft carriers.

The history of the Marine Corps began when two battalions of Continental Marines were formed on 10 November 1775 in Philadelphia as a service branch of infantry troops capable of fighting both at sea and on shore. In the Pacific theater of World War II the Corps took the lead in a massive campaign of amphibious warfare, advancing from island to island. As of 2017, the USMC has around 182,000 active duty members and some 38,500 personnel in Reserve.

reference

Full Form	Category
University of Southern Mississippi	Academic & Science
Universiti Sains Malaysia	Academic & Science
University of Southern Maine	Academic & Science
University System of Maryland	Academic & Science
University Science Malaysia	Academic & Science
University School of Milwaukee	Academic & Science
University of Santa Monica	Academic & Science
University of Southern	Academic & Science
University of Saint Mary	Academic & Science
United Student Movement	Academic & Science
University of Science Malaysia	Academic & Science
Koh Samui	Airport Code
Ultra-Slow Motor	Business
Universal Strategic Marketing	Business
Unified Security Management	Business Management
United Spirits Meet	Community
United State of Mind	Community
United States of Mind	Community
Useful Social Media	Community
User Session Management	Computing
Unsharp Masking	Computing
User Based Security Model	Computing
Usb Memory Stick	Computing
Ultrasonic Motor	Electronics
Underground Soldierz Militia	General
Universal Storage Module	General
Ulrich Schärer Münsingen	General
Unstoppable Sex Machine	General
Universal Scrap Metals	General
Unsprung Mass	General
Under Hood Switching Module	General
Ultimate Stock Manifold	General
Upstate Minis	General
User Setting Mode	General
Underground Spot Mafia	Governmental
Unified Screening Mechanism	Governmental
United States Marines	Military and Defence
Unifying Semantic Model	Physics Related
Koh Samui, Thailand	Regional
Unlisted Securities Market	Stock Exchange