What if we had won the war in Vietnam?

War History Online has an alternative-history article about the war in Vietnam:

The Vietnam War is remembered in popular culture as a catastrophic failure by the USA to prevent the creation of the Socialist Republic of Vietnam. Much has been made in historical studies, fiction, and film on the outcome of the conflict and its contribution to the escalation of the Cold War, but what if history was altered and the Americans and South Vietnam triumphed against the North?
What could the effect have been on Communist China? Would Pol Pot have taken over Cambodia? Let is take a look at a whole different outcome of this conflict and how our world could have been different. As a bonus, the video also takes a look at an alternative history in which John F. Kennedy survived, asking what effect that would that would have had on the war.
The what-if‘s remain intriguing. The infinite possibilities and how they might have changed the world as we know it today are fodder for many discussions.

Here’s what could have happened, according to All About History:

Rico says that Giáp would never have let us win, no matter what, so we'd still be fighting there, fifty years later... And who can forget LBJ calling it 'Veet-nam'?