mur·der (mûrdr) n. The unlawful killing of one human by another, especially with premeditated malice. Slang. Something that is very uncomfortable, difficult, or hazardous: The rush hour traffic is murder. A flock of crows. See Synonyms at flock1. v. mur·dered, mur·der·ing, mur·ders v. tr. To kill (another human) unlawfully. To kill brutally or inhumanly. To put an end to; destroy: murdered their chances. To spoil by ineptness; mutilate: a speech that murdered the English language. Slang. To defeat decisively; trounce. v. intr. To commit murder. Idioms: get away with murder Informal To escape punishment for or detection of an egregiously blameworthy act. murder will out Secrets or misdeeds will eventually be disclosed.
Killing in defence for self or others isn't murder;
kill (kl) v. killed, kill·ing, kills v. tr. To put to death. To deprive of life: The Black Death was a disease that killed millions. To put an end to; extinguish: The rain killed our plans for a picnic. To destroy a vitally essential quality in: Too much garlic killed the taste of the meat. To cause to cease operating; turn off: killed the motor. To tire out completely; exhaust: “The trip to work, and the boredom and nervousness of jobs, kills men” (Jimmy Breslin). To pass (time) in aimless activity: killed a few hours before the flight by sightseeing. To consume entirely; finish off: kill a bottle of brandy. Sports. To prevent a hockey team on a power play from scoring during (a penalty). To cause extreme pain or discomfort to: My shoes are killing me. To mark for deletion; rule out: killed the story. To thwart passage of; veto: kill a congressional bill. Informal. To overwhelm with hilarity, pleasure, or admiration: The outstanding finale killed the audience. Sports. To hit (a ball) with great force. To hit (a ball) with such force as to make a return impossible, especially in a racquet game. v. intr. To cause death or extinction; be fatal. To commit(in the act of) murder. Informal. To make such a strong impression as to overcome: dress to kill. n. The act of killing. An animal killed, especially in hunting. A person killed or to be killed: “Infantrymen... had seen too many kills suddenly get up and run away or shoot at them as they approached” (Nelson DeMille). An enemy aircraft, vessel, or missile that has been attacked and destroyed. Sports. A kill shot. Phrasal Verb: kill off To destroy in such large numbers as to render extinct.
Our service members are not murdering anyone, Saddam Hussien commited murder already...
Sorry for the inartful language.