fighting

war 戰爭
conflict 爭論
combat 戰鬥
debate
defense 保衛 2. 答辯 n. contra prep. 相反，反對 n. 相反，反對；相反的事物。adv. 相反地  The weapons and armed forces that a country has to protect itself from attack 預防裝備 The government increased its spending on defence 政府增加了國防經費