noun
anti-aircraft artillery
A military term referring to artillery units or weapons designed to shoot down aircraft. Often used in the context of the Japan Ground Self-Defense Force.
高射特科部隊が演習に参加した。
The anti-aircraft artillery unit participated in the exercise.
高射砲 specifically refers to anti-aircraft guns, while 高射特科 is a broader term for the anti-aircraft artillery branch or units.
Compound of 高射 (anti-aircraft fire) and 特科 (specialized branch, often used in military contexts for artillery). The exact historical derivation is uncertain; the term is associated with modern military usage.