noun
Marine Expeditionary Force (US)
Official name for a US Marine Corps task organization; used in military and news contexts.
海兵遠征軍は、緊急時に迅速に展開できる部隊です。
The Marine Expeditionary Force is a unit that can deploy rapidly in emergencies.
Compound of 海兵 (marine) + 遠征 (expedition) + 軍 (force), a direct translation of the English term.