The DK1 battalion was established in 1989 as the economic, technological and service cluster of the nation’s southern continental shelf.

Apart from being frame-houses for protecting the nation’s southern continental shelf, they play the role of research stations on hydro-meteorological and natural mineral resources, serving socio-economic development and people's lives.

They also offer shelter for offshore fishing vessels.

DK1 frame-houses are marks at sea that ensure maritime safety for domestic and international vessels passing by.

DK1 cadres and soldiers often work closely with the Vietnam Maritime Administration to ensure regular operation of the light houses.

After 30 years, modern frame-houses have replaced the old ones.

A working delegation practice rituals to commemorate martyrs who sacrificed themselves for national protection.