First, I wasn’t in Vietnam, but it’s no secret from the Veterans who served that they ‘encountered’ Soviet personal on the ground and in the air. That was another component that was suppressed by the government/media apparatus to avoid further ‘escalations’ elsewhere.
Next, both the Soviet Union and Communists in China took advantage of US weapon deliveries. The Soviets to fight the cold war, and the Chinese communists to fight their own people....because they avoided freeing their nation of the Japanese.
In the end, what difference does it make? We here in the US have real problems and it’s hard to complain about elsewhere when we refuse to order our own house.
And the same liberal media that served as a fifth column during the Vietnam war has only increased.