The history of the monument is closely linked to Quang Tri Ancient Citadel, a structure built in 1809 under King Gia Long, originally made of earth, and completed in brick in 1837 under King Minh Mang following Vauban architecture—a type of European defensive fortress. The citadel served as the administrative, political, and military center of Quang Tri province for 135 years. However, its historical pinnacle was the fierce 81-day-and-night battle in 1972, where thousands of soldiers sacrificed their lives to protect the Citadel during the Red Fiery Summer.
After the war, starting in February 1992, the Ministry of Culture and Information (now the Ministry of Culture, Sports and Tourism) invested in restoring the Ancient Citadel, including constructing the central monument as part of a memorial park. The monument was completed to mark the 81 days and nights, becoming a symbol of remembrance and gratitude toward heroic martyrs. Today, the entire complex has been completed with items such as a museum, memorial steles, and an outdoor display area.



