Sure. They're all responsible. Hooande set up a strawman describing an imaginary situation where grunts are held responsible for the cost of war, which is of course allocated by the mucky-mucks on high (and well far away from the front lines, natch).
However, taking the whole of his post and the one you're replying to, I believe it's an incontrovertible fact that there are citizens in a warmaking country who are not responsible: the ones who didn't want to go to war.
Surely those who order the killing, those who pay for it, and those who permit it by voting for the war, bear some of the responsibility?