When you believe that the fight you are taking part in is a "just " one. You can salve your conscience with the "FACT" at that moment in time you believed you were correct in carrying out the subsequent actions. Anything else will just scramble your brains and ruin your life. On a personal note, there are far too many armchair revolutionaries around these days, A soldier fights, a soldier dies,
you do what you have to do in a split second to ensure your survival instinct maintains your own life. Hindssight is a luxury not known to a soldier. Pax nobiscum