It is entirely understandable that Barack Obama's way of dealing with Syria in recent weeks should have elicited responses ranging from puzzlement to disgust. Even members of his own party are despairingly echoing in private the public denunciations of him as "incompetent," "bungling," "feckless," "amateurish" and "in over his head" coming from his political opponents on the right. For how else to characterize a president who declares war against what he calls a great evil demanding immediate extirpation and in the next breath announces that he will postpone taking action for at least 10 days—and then goes off to play...