In 1990 Thái was the first former South Vietnam high government official to visit Communist Vietnam since the collapse of the Saigon regime. Since then he has made several subsequent visits advocating genuine reconciliation between former anti-Communists of South Vietnam and Communists of North Vietnam. He has also made several visits to Russia, Ukraine, Belarus and other countries formerly behind the Iron Curtain in the belief that today's world needs mutual understanding among all nations.