An Truong Kiem said: "Lan Giang Kou, we in Lan Giang Kou encountered an unusually powerful opponent, Major General Salan of the French army! This general since World War II has been famous for being good at defensive warfare. has become an impregnable wall, and our army has wounded more than 1,700 people in just two days, and has not even taken a single position of any importance from him!”