Revenge? Why not "an eye for an eye" instead?
Revenge for injustice will lead to way more injustice. Thus, armies and soldiers will not be able to solve the problem, because they are the reason for it. I heard "an eye for an eye" more often these days than ever before. All these people who demand revenge with this biblical reference should realize, what the bible really wants to tell here: "An eye for an eye" means, that a criminal shall make up for the damage he caused, not less and - important - no more. With this law the old folks wanted to end the many neverending bloody and violent familyfeuds. Because of this, it is exactly opposite of the common interpretation "kill those who kill": It explicitely does not call for revenge. "Revenge is mine alone", remember? Actually, its "compensate the victims damage". You may see, how revolutionary this law from thousands of years ago is - the people still don't get it.