Could Mecca defence pact be first step to new Middle East order?

The Mecca security pact between Saudi Arabia, Turkey and Pakistan stipulates that an armed attack against one shall count as an attack against all three. Yet the real message is directed at the United States: if being an American ally offers no immunity against attack, there is little point in waiting for Washington to honour its security guarantees. That there has been no official White House statement casts some doubt on whether Donald Trump is really “very happy to see that Saudi Arabia,...