Bach Dang Battlefield
Bach Dang Battlefield is a nationally protected historic site along the Bach Dang River in Yen Giang Ward, Quang Yen Town, Quang Ninh Province, Vietnam. It marks the location of three famous battles in 938, 981 and 1288 where Vietnamese forces used submerged wooden stakes to defeat invaders. The site preserves stake yards, temples, exhibition areas and memorials commemorating General Tran Hung Dao and earlier leaders, and is recognized as a Special National Relic.