A photo exhibition was opened in Vientiane on May 6 to mark the 70th anniversary of the Dien Bien Phu Victory. The exhibition showcases 200 photos which are divided into four sections, including one on the cooperation between the Lao army and people and their Vietnamese counterparts in the struggle against US imperialism and its henchmen from 1955 to 1975, and another on the bilateral cooperation in the two countries' national defence, construction and development after 1975. Source: Vietnam News Agency