A HEAVY guard of Cambodian soldiers crouched silently by their guns behind half-built sandbag fortifications at Phnom-Penh's Pochentong Airport. Army Jeeps revved noisily through the night, pausing at military checkpoints throughout the city's deserted streets. Then, at the first sign of light, the soldiers picked up work where they had left off the afternoon before: at the airport, around banks and government buildings, and on major street corners, they unrolled coils of American-made barbed wire and stacked up new walls of sandbags. Cambodia's capital was girding for attack.
The three-month-old regime of Premier...