Now, why would you say something like that? Zeitgeist didn't suggest anything like that. He acknowledged that killing is sometimes necessary.

If the soldier's desire is to bring the conflict to a successful conclusion, then his expression of joy over an opportunity to kill doesn't reflect poorly on him. Rather, it reflects poorly on those who rushed us into war. Having never been soldiers themselves, they were unable to appreciate the full impact of putting men and women in the position of having to kill other humans. Killing done in our national defense is honorable, but it injures the people doing the killing, IMHO.