(VOVworld) – More than 50 maps of the East Sea from various Vietnamese and Chinese dynasties are on display at an exhibition in the Dien Bien Phu Victory Museum in Dien Bien Phu city.

The maps consistently show Vietnam’s sovereignty over Hoang Sa and Truong Sa archipelagoes. The exhibition also features 100 photos of activities in Dien Bien province responding to the sea and islands campaign.