I think that's a pretty disengenous take on the author's thought process. If you read the entire article it's clear that he believes in the concept of defending his country and trusting his leaders to correctly decide how that defense is carried out. If that decision is to send him to the middle east then so be it. It very clearly is not about him wanting to "do a bit of invading."
Maybe you think the middle east invasion was the wrong call. Totally fair. But you should blame the correct actor for that call, and it certainly is not the individual soldier.