Arabs always shoot their mouth off like that, even though they've proven remarkably incompetent on the battlefield. For all the bluster and bravado, you'd think they'd at least have a couple of victories under their belts in the last few hundred years.
Another universal muslim trait is using the 'palestinians' as a distraction to the ignorant masses for their own miserable plight. It seems to be effective, somehow... which doesn't speak highly of the overall intelligence of the general populace.
Interdum feror cupidine partium magnarum Europae vincendarum