Why was the Tet Offensive of 1968 such a historically significant moment in the Vietnam War? US and South Vietnamese troops were able to force the Vietcong to retreat to Cambodia
its failure led to disagreements between the Vietcong and the North Vietnamese government
it showed the superiority of the US forces over the Vietcong
It showed the Vietcong could launch a massive attack on South Vietnamese cities and were not close to defeat