The historical relic site K20 is nestled in Da Man Village, My An Ward, Ngu Hanh Son District, Da Nang.  It was given the name K20 by the 3^rd District Party Committee as a secret communication code during the anti-US resistance war.

Covering an area of 3km² and with a population of over 3,000 people, K20 was one of Da Nang’s most important revolutionary bases.  After having occupied Da Nang in 1954, the US and its puppet government in South Viet Nam had built many military posts around Da Man Village.  Their main purpose was to control the local population and to prevent attacks on the inner-city by revolutionary soldiers.  Despite being tightly controlled and monitored, Da Man’s villagers upheld their revolutionary spirit and provided underground shelters for revolutionary cadres.  A total of 158 tunnels were dug in secret, one in every house in the village. 

Thanks to the great efforts of the villagers, a guerilla group was established in 1962 and its membership grew to 27 by 1964.  They gained many victories, including killing many enemy personnel and destroying a number of the strategic hamlets which had been under the control of the US and its puppet government forces.

Today, an exhibition house displays a large number items, and features real stories of the people who participated in the anti-US resistance war.  Some of these people are still alive and still live in the village.  Visitors have a chance to explore the secret hideouts for the revolutionary cadres and the combat trenches.  Visitors to the K20 site will learn about the Vietnamese people’s resilient and unyielding struggle for independence, freedom and national reunification.