BANGKOK -- As President Donald Trump chases off allies and trading partners with threats of "reciprocal" tariffs, President Xi Jinping's sweep through Southeast Asia is occurring just as the last humiliating and chaotic U.S. loss to communism in the region is being memorialized.
After most Americans had fled, the Cambodian capital fell to China-backed Khmer Rouge forces on April 17, 1975 -- 50 years ago to the day that Xi set down at Phnom Penh International Airport for the concluding days of a regional tour.
