WHAT ABOUT THE OTHER COUNTRIES WHO FOUGHT?

I am Australian and I was born not long after the Vietnam War ended. I do realize that America was the main country participating on our side, however I have not been able to find a single response (apart from the one above) which acknowledges the other countries that fought in the war. There are a lot of Australian Vietnam Veterans down here in Australia and, as we say on our war memorials;

                                    LEST WE FORGET.