Answer:
Hue, is the right answer.
Explanation:
The Battle of Huế that took place between 30 January and 3 March 1968 was one of the most long-drawn and most ferocious fights of the Vietnam War. Throughout the capture and invasion of the city by the Viet Cong and the People's Army of Vietnam, a large number of executions and mass slaughter took place. However, during the Tet Offensive, the NLF and North Vietnamese suffered heavy losses.