noun
US Marine Corps
Refers specifically to the United States Marine Corps. Often used in news and military contexts.
米海兵隊は沖縄に駐留している。
The US Marine Corps is stationed in Okinawa.
海兵隊 is a general term for marine corps, while 米海兵隊 specifically refers to the US Marine Corps.
Compound of 米 (べい, 'America') + 海兵隊 (かいへいたい, 'marine corps').