7. How many South Vietnamese cities were attacked at the same time by

the Vietcong?

Question - How many South Vietnamese cities were attacked at the same time by the Vietcong?

Answer - 13 cities

Explanation - On the early morning of January 30, 1968, Viet Cong forces attacked 13 cities in central South Vietnam, just as many families began their observances of the lunar new year.

Answer: "On the early morning of January 30, 1968, Viet Cong forces went and attacked thirteen cities in South Vietnam, just as many families began their observances of the lunar new year."