no
I know of no illegal "rugs" that entered south Vietnam but there were illegal Drugs that did enter Vietnam.
The Vietnam war
no
cause they wanted to! =)
If your referring to the Vietnam War, the first U.S military advisors arrived in Vietnam in 1950.
They were drafted.
A reluctance to enter future conflicts
Stop communist aggression.
Vietnam.
north Vietnam invaded south vietnma
Australian troops entered into the Vietnam War on the 29th April 1965.
The ground war, in the Vietnam War, WAS FOUGHT in SOUTH VIETNAM. Therefore, South Vietnam entered the war from the very beginning...which is when it started in either the late 1950's or 1961, depending on what historical reference you are using.