The Islamists are just as fanatical as the Japanese we faced during WWII. Imagine if Japan had fanatical followers spread throughout the world, as Islam is, as opposed to merely being confined to one small country.
Yes, Hitler and Tojo were nationalist. These fascist Islamics are like communists insofar as their movement is internationalist. Harder to fight when you have nests of them in your midst, with all the protections of the Constitution.