armored personnel carrier; APC
Military vehicle designed to transport infantry with armor protection. The term is technical and domain-specific.
Armored personnel carriers are used to transport infantry safely to the battlefield.
装甲車 is a broader term for any armored vehicle, while 装甲人員運搬車 specifically refers to an armored personnel carrier.
Compound of 装甲 (armor), 人員 (personnel), 運搬 (transport), and 車 (vehicle). A modern technical term.