The French wanted to destroy the Viet Minh in a set-piece (conventional) battle. They under-estimated the Viet Minh, when the communists managed to emplace field guns (artillery) around the French...
For close to ten years, the French had been fighting the Viet Minh. The last year of the war, 1954, the French military decided to establish a base in an area that would interrupt the communist...