No, war is justified murder. State execution is justified murder.<quoted text>Every murderer knows when he murders that he is doing something wrong or else he would not try so hard to justify/excuse it, or hide evidence and lie about it. Murder is universally wrong. Your "relative" is just another way to pardon an ego's selfish desires.
Do you think that the people hit by drone strikes do not think of their attackers as muderers?
War is justified murder, if your side wins all is forgiven. If your side loses there may be a big price to pay.