Vietnamese troops begin Kampuchea 'withdrawal'

About 1,500 Vietnamese troops, accompanied by tanks and artillery, left here - part of a promised 10,000-troop pullout from Kampuchea. Hun Sen, foreign minister of Kampuchea's Vietnamese-backed government, said the need for the Vietnamese had diminished with the monsoon rains, which limit troop mobility. He also denied claims by some Western and neighboring non-Communist countries that the Vietnamese troop movement is not a withdrawal but a troop rotation.