As Ye'or documents, the key to Islamist terrorism is Israel, but not in the way most people think. For the jihadist mentality, Israel must be destroyed, if not by bombs and tanks, then by piece-meal concessions and sheer demography. It make take fifty years, it may take a hundred, but like the medieval Crusader kingdoms, this manifestation of the dynamic power of Western cultural ideals cannot be allowed to survive as a constant reminder of Islamic civilization's failure. Israel's war is our war, and until we forcefully assert that linkage in our public pronouncements and more important in our actions, everything else we do just buys some time, in which the forces of appeasement and the murderous energy of the jihadists will do their work.
"We must all hang together,or, most assuredly, we shall all hang separately."
-- Ben Franklin