I wouldn't be so happy if I'm killing people
Yes you're right, but they can be killed and himself a moment of leisure I am not to remove. I have been in the military because it was once obbligatiory and I assure you that is ugly.
War is much worse then...
PS: They are dancing and for they is funny, but the other moment I think they aren't happy. The family, the friend.... may they never return home.