The Dong So – A Tuc Tunnel Complex is situated in the Dong So mountain range, A Tuc, located in Hong Bac commune, A Luoi district, Thua Thien Hue province. Constructed in 1966, this tunnel complex was one of the vital military works of the Vietnamese army during the war against the U.S., aimed at providing military supplies and supporting the southern battlefield, especially during the Tet Offensive of 1968.

The Dong So – A Tuc Tunnel Complex consists of approximately 10 tunnels, built in a U-shape, with arch-shaped entrances ranging from 1.55m to 1.8m in height, 1.2m in width, and lengths varying from 12 to 18m. These tunnels were designed to store weapons, and military equipment, and serve as hiding places for our soldiers and civilians during the war period.

The Dong So – A Tuc Tunnel Complex played a crucial role in meeting the material and technical needs of our troops during the Tet Offensive of 1968. Additionally, it functioned as a major transit station, providing timely supplies to the southern battlefields.

With its significant historical role and meaning, the Dong So – A Tuc Tunnel Complex has been classified as a National Monument, symbolizing the resilience and sacrifice of the soldiers and civilians of Thua Thien Hue in the war against the U.S.

The Dong So – A Tuc Tunnel Complex is not only a historical tourist site but also a clear testament to the greatness and indomitable spirit of the Vietnamese people during difficult times. Visit and explore to gain a deeper understanding of the heroic past and patriotism of the people of Hue.