Quote Originally Posted by Banquo's Ghost
Because, while you are right to characterise war as killing people, the prosecution of war can produce great acts of heroism which inform our noblest aspirations.

The brutality of war is nothing to revere, neither the death of any individual. But the acts of self-sacrifice, comradeship or compassion that occur amidst the dreary evil may be celebrated by memorial.

As long as by doing so, we don't glorify the killing but reflect upon the sacrifice.
What you choose to do, is to focus so much on other aspects, that the brutal and senseless killings of it is forgotten, and that makes some people think that "hey, war is fun!". The heroism part of war is an extremely small part of it, war is and has always been about senseless murders.

Perhaps if we focused more on the murders of war instead of heroism, people would view war as a bad thing today...