In Shakespeare’s Henry IV, Part 1, when the Welsh magus Glendower boasts, “I can call spirits from the vasty deep,” the sceptic Hotspur retorts, “Why, so can I, or so can any man; But will they come when you do call for them?” For seven decades the West’s foreign policy establishment has been trying to call Middle East peace from depths of endless summits and conferences and agreements with ritualistic chants of “land for peace” and “two-state solution.”