fighting

war 战争
conflict 争论
combat 战斗
debate
defense 保卫 2. 答辩 n. contra prep. 相反，反对 n. 相反，反对；相反的事物。adv. 相反地  The weapons and armed forces that a country has to protect itself from attack 预防装备 The government increased its spending on defence 政府增加了国防经费