Dong Ha is a city located in Quang Tri Province, Vietnam. It serves as the capital of the province and is situated near the border with North Vietnam. The city has a rich history, particularly during the Vietnam War, when it was a strategic military base. Today, Dong Ha is known for its cultural heritage and proximity to historical sites, including the DMZ (Demilitarized Zone) and the ancient town of Hien Luong. The city has a growing economy, with agriculture and tourism playing significant roles in its development.