The Quảng Trị Citadel is a historical site of a 19th-century fort on the bank of Thạch Hãn River, in the heart of Quảng Trị town, Quảng Trị province, Vietnam. The citadel once hosted the administration office of the Nguyễn dynasty, and later that of the French colonial regime and the American-backed southern regime, while also functioning as a military defense system...