It’s the country of Magna Carta and the great English liberties. It gave us the Mother of Parliaments and established the largest and most benign empire the world has ever seen. It held out alone against the Nazis, under an inspiring leader who vowed that “we shall fight on the beaches, we shall fight on the landing grounds, we shall fight in the fields and in the streets, we shall fight in the hills; we shall never surrender.” And after the war it became America’s partner in a Special Relationship that ultimately brought down the Soviet Union. But now?...