Firebase O'Reilly (also known as Hill 542) is a former Army of the Republic of Vietnam (ARVN) firebase located south of Quảng Trị in Quảng Trị Province, Vietnam.
Firebase O'Reilly (also known as Hill 542) is a former Army of the Republic of Vietnam (ARVN) firebase located south of Quảng Trị in Quảng Trị Province, Vietnam. (en)
Firebase O'Reilly (also known as Hill 542) is a former Army of the Republic of Vietnam (ARVN) firebase located south of Quảng Trị in Quảng Trị Province, Vietnam. (en)