It depends on what level you ask. It's a very young country, therefore most of the population has no memory of the war. Obviously though, the older generations do. But my experience is that the parents generally don't talk about the war to their families. I've heard stories of people asking their parents to talk about it and then being completely shut down. It appears to me that the wartime experience was so horrible that people don't want to talk about it.
"I've heard stories of people asking their parents to talk about it and then being completely shut down."
But at a kind of institutional level, the Communist Party still sees the US to some extent as a potential threat. There’s the idea floating around that there could some sort of a colour revolution in Vietnam, similar to what happened in Ukraine or Serbia, or that through the power of Facebook, Washington would overthrow the Communist Party. It may be hard to believe but this is still a real fear among the security structures in Vietnam. They don't come out and say so publicly but the general attitude within the system is one of deep concern about the US.
At the popular level there's never been a more pro-American country. Everyone is into American consumer culture. When Obama visited, you had crowds five or six deep lining the streets to cheer him. It's a very pro-American country at a popular level.