The Communists had attained their goal: they had toppled the Saigon regime.

Phong Dinh had been a city councilman in Vung Tau during the Saigon regime.

The large Communist units gravely threatened the Saigon regime, which was now tottering amid internecine rivalries.

In 1990 Thái was the first former South Vietnam high government official to visit Communist Vietnam since the collapse of the Saigon regime.

March 10 In Hue and Danang, Buddhist monks demonstrate against the Saigon regime.

For liberals, Vietnam was an immoral war, in support of insupportable Saigon regimes.

John Paul Vann became an adviser to the Saigon regime in the early 1960s.

A second hour, "The End of the Tunnel, 1973-75," covers the cease-fire in 1973 and the final toppling of the Saigon regime in 1975.

If they were intent on judging the Saigon regime by different standards than they did South Korea and Taiwan, then they should have pulled out.

(In the 1960's, they fought the Saigon regime for independence and, later, autonomy.)