What was the 1968 offensive launched by the North Vietnamese against the South Vietnamese called?

tet offensive

The 1968 offensive launched by the South Vietnamese was called the Tet offensive. It was called the Tet Offensive because it began in the early morning of 31 January 1968, which is Tết Nguyên Đán, the first day of the year on a traditional lunar calendar and the most significant Vietnamese holiday.