Trump gave a grab-bag of aims for starting the war. Now he has the additional problem of simply guaranteeing freedom of passage for the world’s energy supplies.

Trump gave a grab-bag of aims for starting the war. Now he has the additional problem of simply guaranteeing freedom of passage for the world’s energy supplies.

Trump is not the first, nor may he be the last, president to fail to heed his predecessors' lessons, says Jasmine El-Gamal