Very much like Hitler's SS. But the SS did give up and go home, and then they caused no more trouble. What's the difference? FDR, Churchill, and Stalin were smart enough to wage total war against the Nazis, not stopping until the Nazis were crushed.
Contrast that with Bush II's mushy hearts-and-minds approach to war with islam. I assign very little blame to Obama here. It was Bush's war to win or lose, and he lost it.
We need to do a “Dresden” on them.