战斗 (打仗)
fight: It is a bodily struggle (奋斗 斗争)
struggle: An effort of any kind to overcome difficulty. (战斗) battle: A fight between armed forces. (战役)
campaign: A series of related military operations in a war. (战争)
war: A period of fight between countries or states when weapons are used and many people are killed.(对抗)
combat: A fight, conflict, controversy.