Chapter Five - Vietnam   In late 1978, the ‘Reunification Train’, symbolising the union of the old capitals of South and North Vietnam, began its journey in Saigon’s stinking humidity beside the Mekong Delta. Departing Saigon, now called Ho Chi Minh City, it took two days, sometimes three, even four, on a leisurely northern journey of some sixteen hundred kilometres, to arrive at the capital of Hanoi, built on the Great Red River where the air cooled and the sweat from the oppressive southern