Back from a 32,000-mile, six-week swing through the farthest reaches of the Commonwealth, Harold Macmillan felt a "sense of exhilaration and renewed faith" in the strength of Britain's empire ties. The Commonwealth had seen an unexpectedly relaxed and genial Macmillan. Fresh from a rousing reception in India, he landed at Karachi in Pakistan (in a Britannia turboprop airliner nicknamed "The Flying No. 10") to be greeted by cheering thousands, detoured 700 miles north to the North-West Frontier mountains never before visited by a British Prime Minister.
At Khyber Pass tribal leaders draped garlands around Macmillan's neck, gave him the traditional Pathan...