It's glorified murder. Justify it all you like but it's forgeted up.
If we didn't have men and women in the army then people like Riddler could make it so more people would die than ever will in war. The army and war are necessary evils. As much as it would be nice if this was a perfect world, it isn't and sometimes you gotta kill someone to save 10 more lives.
It isn't glorified murder, it's global takeover prevention.
I have multiple relatives who were in the army and I don't think they would appreciate being called glorified murders when in reality they were protecting people like you from becoming slaves to some dictator.