guerrilla; guerrilla soldier
Refers to a member of a guerrilla force; a fighter in irregular warfare.
ゲリラ兵が山岳地帯で活動している。
Guerrilla soldiers are operating in the mountainous region.
Compound of ゲリラ (from English 'guerrilla', ultimately from Spanish 'guerrilla') and 兵 (へい, 'soldier').