A second war tour breeds resentment driven by failure rather than fear.

Evidence

THIS IS WHAT Sami was thinking after being home for four months: “When you find out that you are going back to Iraq for a second tour, you’re pissed. It’s like a sick slap in the face. The second time around, you don’t want to go, but the reasons for your resistance stem this time less from fear—you have a better idea of what to expect, although there will still be unknowns—than from a sense of failure. Why the hell are you going out there again? Didn’t they say the war is supposed to be over? Didn’t the army guys complete their mission? You begin questioning other branches of the service, which you know is not a good thing to do. You start dreading telling your family that you will be back in Iraq. You get on the phone one night to give your girlfriend in New Jersey the bad news. She starts crying, which makes you want to break something. You want to fight someone. You curse the military. You curse George W. Bush.” — Moustafa Bayoumi, How Does It Feel to Be a Problem? Being…, 254