This in turn stimulated China’s unsuccessful intervention in North Vietnam. The withdrawal by all of these invading armies to the recognized international boundaries demonstrated that nationalist forces were dominant in the region, not communist solidarity.
1975年美国从西贡撤军后，多米诺骨牌没有滑落，反而爆发了越南和柬埔寨之间的战争。随后这又促使中国对北越展开不成功的干涉。所有这些侵略军队撤回到国际承认的边界线显示出这个地区占优势的是民族主义者的力量，而不是共产主义者的团结。