Diện Biên Phủ is a city located in the province of Dien Bien in northwestern Vietnam. It is best known for being the site of the historic Battle of Dien Bien Phu, which took place in 1954 and resulted in the defeat of the French colonial forces by the Viet Minh, leading to the end of French rule in Indochina. The city is surrounded by beautiful mountainous landscapes and is home to a diverse ethnic population, including the Thai, Hmong, and Dao people. The area is known for its rich cultural heritage, with traditional festivals, music, and dance being an integral part of the local way of life.