To subdue the enemy without fighting is the supreme excellence.
Thus, what is of supreme importance in war is to attack the enemy's strategy. Next best is to disrupt his alliances by diplomacy. The next best is to attack his army. And the worst policy is to attack cities. Sun Tzu.
So, due to the intractable "bravery" of the Mighty War Leader, the US is using the 2 worst strategies and Al Qaeda is employing the 2 best.
WE WILL STAY THE COURSE.