Question: What facility is shared by RAAF Base Williamtown and Newcastle Airport in New South Wales?

Context:
No. 26 Squadron RAAF
No. 26 (City of Newcastle) Squadron RAAF is a Royal Australian Air Force reserve squadron, headquartered at RAAF Base Williamtown in New South Wales, Australia.
 The squadron's role is to provide trained personnel to regular RAAF units during operations.
 It was formed on 1 July 1981 and is responsible for air force reservists in the Hunter Region of New South Wales.
No. 3 Control and Reporting Unit RAAF
No. 3 Control and Reporting Unit (3CRU) is a Royal Australian Air Force surveillance unit.
 3CRU is currently headquartered at RAAF Base Williamtown near Newcastle, New South Wales and is primarily responsible for conducting surveillance of Australia's airspace and air battle management for RAAF flying squadrons.
 Operating from the Eastern Region Operations Centre, known commonly as EROC, 3CRU is the premier ADGE unit.
 A detachment of 3CRU, 3CRU DET TDL, operates from the Northern Region Operations Centre (NROC) at RAAF Base Tindal and currently operates the Vigilaire air defence system.
Fighter World
Fighter World is an Australian aviation museum.
 Its purpose is to preserve the history of fighter operations of the Royal Australian Air Force (RAAF) and it has a large collection of aircraft, most of which are fighters once operated by the RAAF.
 It is located at RAAF Base Williamtown near Newcastle, New South Wales.
Newcastle Airport (New South Wales)
The Newcastle Airport (IATA: NTL, ICAO: YWLM) is 8 NM north of Newcastle, New South Wales (27 km by road) in Port Stephens.
 It is the 12th busiest airport in Australia, handling over 1.25 million passengers in the year ended 30 June 2017, an increase of 6.6% on the previous year.
 The airport occupies a 28 ha site on the southern border of RAAF Base Williamtown.
RAAF Base Williamtown
RAAF Base Williamtown (IATA: NTL, ICAO: YWLM) is a Royal Australian Air Force (RAAF) military air base located 8 NM north of the coastal city of Newcastle (27 km by road) 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 west of the base and Medowie, 6.8 km , north of the base, which is home to many of the base's staff.
No. 2 Squadron RAAF
No. 2 Squadron is a Royal Australian Air Force (RAAF) squadron that operates from RAAF Base Williamtown, near Newcastle, New South Wales.
 From its formation in 1916 as part of the Australian Flying Corps, it has flown a variety of aircraft types including fighters, bombers, and Airborne Early Warning & Control (AEW&C).
 During World War I, the squadron operated on the Western Front conducting fighter sweeps and ground-attack missions.
 It was disbanded in mid-1919, following the end of hostilities.
 The squadron was briefly re-raised in 1922 as part of the newly independent RAAF, but was disbanded after only a couple of months and not reformed until 1937.
 It saw action as a bomber unit in the South West Pacific theatre of World War II and, equipped with English Electric Canberra jets, in the Malayan Emergency and the Vietnam War.
 The squadron was again disbanded in 1982, following the retirement of the Canberra.
 It was re-formed in 2000 to operate the Boeing 737 AEW&C "Wedgetail".
 One of the six Boeing 737s was deployed to the Middle East in September 2014, as part of Australia's contribution to the military coalition against ISIS.
No. 78 Wing RAAF
No. 78 Wing is a Royal Australian Air Force (RAAF) operational training wing, headquartered at RAAF Base Williamtown, New South Wales.
 It comprises Nos. 76 and 79 Squadrons, operating the BAE Hawk 127 lead-in fighter, and No. 278 Squadron, a technical training unit.
 No. 79 Squadron, located at RAAF Base Pearce, Western Australia, is responsible for converting new pilots to fast jets, while No. 76 Squadron at Williamtown conducts introductory fighter courses; both units also fly support missions for the Royal Australian Navy and the Australian Army.
No. 81 Wing RAAF
No. 81 Wing is responsible for operating the McDonnell Douglas F/A-18 Hornet multi-role fighters of the Royal Australian Air Force (RAAF).
 Headquartered at RAAF Base Williamtown, New South Wales, the wing comprises three combat units, Nos. 3 and 77 Squadrons based at Williamtown and No. 75 Squadron at RAAF Base Tindal, Northern Territory, as well as an operational conversion unit at Williamtown.
 No. 81 Wing headquarters oversees squadron training in air-to-air and air-to-ground tactics, and support for the Australian Army and Royal Australian Navy.
 Tasked with offensive and defensive counter-air operations, the Hornets have been deployed to Diego Garcia in 2001–02, when they provided local air defence, to Iraq in 2003, when they saw action flying fighter escort and close air support missions in concert with Coalition forces, and to the Middle East in 2015–16, when they undertook strike operations during the military intervention against ISIL.
 They have also been employed to patrol high-profile events in Australia, including the Commonwealth Games and visits by foreign dignitaries.
Williamtown chemical contamination
Williamtown chemical contamination refers to the ongoing health problems occurring around RAAF Base Williamtown in Williamtown, New South Wales, Australia.
 Contamination is by per- and poly-fluoroalkyl substances (PFAS) used in firefighting foam.
No. 3 Squadron RAAF
No. 3 Squadron is a Royal Australian Air Force (RAAF) fighter squadron, headquartered at RAAF Base Williamtown, near Newcastle, New South Wales.
 Established in 1916, it was one of four combat squadrons of the Australian Flying Corps during World War I, and operated on the Western Front in France before being disbanded in 1919.
 It was re-raised as a permanent squadron of the RAAF in 1925, and during World War II operated in the Mediterranean Theatre.
 The Cold War years saw the squadron disbanded and re-raised twice.
 It was based at RAAF Butterworth during the Malayan Emergency and the Indonesia–Malaysia "Konfrontasi".
 Equipped with McDonnell Douglas F/A-18 Hornet multi-role fighters from 1986, the squadron deployed to Diego Garcia in 2002 to provide local air defence, and the following year contributed aircraft and crews to the invasion of Iraq as part of Operation Falconer.
 In April 2016, it deployed to the Middle East as part of the military intervention against ISIL.

Answer: runway