1. A chickenhawk supports the war and could volunteer to fight.
2. Moreover he* recommends the war enthusiastically, and tries to convince other people that the war is worthwhile. He may have exhorted us to invade Iraq in the first place. Maybe he even attacks critics of the war for being “weak” or “unpatriotic.”
3. He knows that there aren’t currently enough troops to fight the war properly.
4. He understands that if the war is not fought properly, we will lose. He can’t advocate the status quo, because that would be hypocritical. After all, he says he supports the war. He also claims to support our troops, and he wouldn’t want any unnecessary deaths for lack of reinforcements.
Go see where it is going.