No. 1 Security Forces Squadron (1SECFOR) is a Royal Australian Air Force (RAAF) military unit whose primary role is to protect and secure airfields, buildings, equipment, and personnel.

RAAF Base Williamtown is a Royal Australian Air Force (RAAF) military air base located 8 nautical miles north of Newcastle in the local government area of Port Stephens, in New South Wales, Australia. The base serves as the headquarters to both the Air Combat Group and the Surveillance and Response Group of the RAAF. The military base shares its runway facilities with Newcastle Airport. The nearest towns are Raymond Terrace, located 8 km (5 mi) west of the base and Medowie, 6.8 km (4.2 mi), north of the base, which is home to many of the base's staff.