noun
Delta Force
Refers specifically to the US Army's 1st Special Forces Operational Detachment-Delta, a counter-terrorism and special missions unit.
デルタフォースは対テロ作戦で知られている。
Delta Force is known for counter-terrorism operations.
Variant spelling with an interpunct; less common but still seen.
Borrowed from English 'Delta Force', the name of the US Army special operations unit.