Saudi Arabia, no stranger to at the very least indirectly supporting some radial jihadi groups, announced the formation of a 34-nation alliance of predominately Muslim nations to fight the Islamic State.
It'll fail. How do I know? Because Muslim nations are for the most part run by mustachioed dictators who fill the officer corps of their militaries with friends, relatives, and clan members. These men are picked not for competence, but for loyalty. This explains how tiny Israel won its war for independence, the Six Day War, and the Yom Kippur War.