The NATO Integrated Air Defense System (short: NATINADS) is a command and control network combining radars and other facilities spread throughout the NATO alliance's air defence forces. It formed in the mid-1950s and became operational in 1962 as NADGE. It has been constantly upgraded since its formation, notably with the integration of Airborne Early Warning aircraft in the 1970s. The United Kingdom maintained its own network, but was fully integrated with the network since the introduction of the Linesman/Mediator network in the 1970s. Similarly, the German network maintained an independent nature through GEADGE.
Development was approved by the NATO Military Committee in December 1955. The system was to be based on four air defense regions (ADRs) coordinated by SACEUR (Supreme Allied Commander Europe). Starting from 1956 early warning coverage was extended across Western Europe using 18 radar stations. This part of the system was completed by 1962. Linked to existing national radar sites the coordinated system was called the NATO Air Defence Ground Environment (NADGE).
From 1960 NATO countries agreed to place all their air defence forces under the command of SACEUR in the event of war. These forces included command & control (C2) systems, radar installations, and Surface-to-Air (SAM) missile units as well as interceptor aircraft.
By 1972 NADGE was converted into NATINADS consisting of 84 radar sites and associated Control Reporting Centers (CRC) and in the 1980s the Airborne Early Warning / Ground Environment Integration Segment (AEGIS) upgraded the NATINADS with the possibility to integrate the AWACS radar picture and all of its information into its visual displays. (NOTE: This AEGIS is not to be confused with the U.S.Navy AEGIS, a shipboard fire control radar and weapons system.) AEGIS processed the information through Hughes H5118ME computers, which replaced the H3118M computers installed at NADGE sites in the late 1960s and early 1970s.
NATINADS ability to handle data increased with faster clock rates. The H5118M computer had a staggering 1 megabyte of memory and could handle 1.2 million instructions per second while the former model had a memory of only 256 kilobytes and a clock speed of 150,000 instructions per seconds.[1]
NATINADS/AEGIS were complemented, in West Germany by the German Air Defence Ground Environment (GEADGE), an updated radar network adding the southern part of Germany to the European system and Coastal Radar Integration System (CRIS), adding data links from Danish coastal radars.
In order to counter the hardware obsolescence, during the mid-1990s NATO started the AEGIS Site Emulator (ASE) program allowing the NATINADS/AEGIS sites to replace the proprietary hardware (the 5118ME computer and the various operator consoles IDM-2, HMD-22, IDM-80) with commercial-off-the-shelf (COTS) servers and workstations.
In the first years 2000, the initial ASE capability was expanded with the possibility to run, thanks to the new hardware power, multiple site emulators on the same hardware, so the system was renamed into Multi-AEGIS Site Emulator (MASE). The NATO system designed to replace MASE in the near future is the Air Command and Control System (ACCS).
Because of changing politics, NATO expanding and financial crises most European (NATO) countries are trying to cut defence budgets; as a direct result, many obsolete and outdated NATINADS facilities are phased out earlier. As of 2013, operational NATO radar sites in Europe are as follows:
The Belgian Air Component's Control and Reporting Centre was based at Glons, where also its main radar was located. The radar was deactivated in 2015[4] and the Centre moved to Beauvechain Air Base in 2020.[5] The Belgian Control and Reporting Centre reports to CAOC Uedem in Germany and is also responsible for guarding the airspace of Luxembourg. At the new location the Control and Reporting Centre uses digital radar data of the civilian radars of Belgocontrol and the Marconi S-723 radar of the Air Component's Air Traffic Control Centre in Semmerzake.
Bulgaria
The Bulgarian Air Force's Air Sovereignty Operations Centre is located in Sofia and reports to CAOC Torrejón. The Bulgarian Air Force fields three control and surveillance zones, which operate obsolete Soviet-era radars. The Bulgarian Air Force intends to replace these radars with fewer, but more capable Western 3-D radars as soon as possible. The future locations of the new radars are as of 2018 unknown.
Royal Danish Air Force radar stations Radar station with RAT-31DL Radar station with AN/TPS-77 Radar station with Marconi S-723 Control and Reporting Centre
Estonian Air Force radar stations Radar station with GM 403 Radar station with AN/TPS-77(V) Control and Reporting Centre
The Estonian Air Force's Air Operations Control Centre is located at Ämari Air Base and reports to the Baltic Air Surveillance Network's Regional Airspace Surveillance Coordination Centre (RASCC) in Karmėlava, Lithuania, which in turn reports to CAOC Uedem.
The Finnish Air Force's Air Operations Centre is located at Jyväskylä Airport, while the air force's control reporting centres are co-located with the Lapland Air Wing (5th Control and Reporting Centre) at Rovaniemi Airport and the Karelia Air Wing (7th Control and Reporting Centre) at Kuopio Airport. Finland operates five fixed radar sites with Thomson TRS 2215D (KAVA) radars and 13 mobile 13 GM 403 radars (KEVA 2010).[8]
French Air and Space Force radar stations Radar station with GM 406 Command and Control Centre
The French Air and Space Force's Air Operations Centre is located at Mont Verdun Air Base and reports to CAOC Uedem. Most French radar sites use the PALMIER radar, which is being taken out of service. By 2022 all PALMIER radars were replaced with GM 403 radar.
German Air Force radar stations Radar station with HADR Radar station with GM 406F Radar station with RRP-117 Control and Reporting Centre
The German Air Force's Combined Air Operations Centre (CAOC 2) in Uedem was deactivated in 2008 and reactivated as CAOC Uedem in 2013. CAOC Uedem is responsible for the NATO airspace North of the Alps. The HADR radars are a variant of the HR-3000 radar, while the RRP-117 radars are a variant of the AN/FPS-117.
Air Operations Centre (Zentrum Luftoperationen der Luftwaffe) (NATO CAOC Uedem), in Uedem
Control and Reporting Centre 2 (Einsatzführungsbereich 2), in Erndtebrück[9]
Remote Radar Post 354 "Blackmoor", in Döbern with RRP-117
Remote Radar Post 355 "Royal Flash", in Gleina with RRP-117
Remote Radar Post 357 "", on Döbraberg with RRP-117
Remote Radar Post 358 "Snow Cap", on Großer Arber with RRP-117
Greece
1st Area Control Centre, inside Mount Chortiatis, with Marconi S-743D 2nd Area Control Centre, inside Mount Parnitha, with Marconi S-743D 9th Control and Warning Station Squadron, on Mount Pelion, with Marconi S-743D 10th Control and Warning Station Squadron, on Mount Chortiatis, with Marconi S-743D
Hellenic Air Force radar stations Radar station RAT-31DL Radar station with HR-3000 Radar station with AR-327 Radar station with Marconi S-743D Command and Control Centre
The Hellenic Air Force's Combined Air Operations Centre ( CAOC 7) at Larissa Air Base was deactivated in 2013 and its responsibilities transferred to the CAOC Torrejón in Spain. The Hellenic Air Force fields two HR-3000, four AR-327 and six Marconi S-743D radar systems, however as of 2018 the air force is in the process of replacing some of its older systems with three RAT-31DL radars.
Hungarian Air Force radar stations Radar station with RAT-31DL Command and Control Centre
The Hungarian Air Force's Air Operations Centre is located in Veszprém and reports to CAOC Uedem. There are additional three radar companies with Soviet-era equipment subordinate to the 54th Radar Regiment "Veszprém", however it is unclear if they will remain in service once Hungary's newest radar at Medina reaches full operational capability.
Iceland Air Defense System radar stations Radar station with AN/FPS-117(V)5 Control and Reporting Centre
The Iceland Air Defense System, which is part of the Icelandic Coast Guard, monitors Iceland's airspace. Air Defense is provided by fighter jets from NATO allies, which rotate units for the Icelandic Air Policing mission to Keflavik Air Base. The Iceland Air Defense System's Control and Reporting Centre is at Keflavik Air Base and reports to CAOC Uedem in Germany.
Italian Air Force radar stations Radar station with RAT-31DL Radar station with AN/FPS-117(V) Command and Control Centre
The Italian Air Force's Combined Air Operations Centre (CAOC 5) in Poggio Renatico was deactivated in 2013 and replaced with the Mobile Command and Control Regiment (RMCC) at Bari Air Base, while the Centre's responsibilities were transferred to the CAOC Torrejón in Spain.
Air Operations Command (COA), in Poggio Renatico
Air Operations Centre, in Poggio Renatico
Integrated Missile Air-defense Regiment (Rep. DAMI), in Poggio Renatico
11th Integrated Missile Air-defense Squadron, in Poggio Renatico
22nd Air Force Radar Squadron (GrRAM), in Licola, with AN/FPS-117(V)
112th Remote Radar Station Flight, in Mortara, with RAT-31DL
113th Remote Radar Station Flight, in Lame di Concordia, with RAT-31DL
114th Remote Radar Station Flight, in Potenza Picena, with RAT-31DL
115th Remote Radar Station Flight, in Capo Mele, with RAT-31DL
121st Remote Radar Station Flight, in Poggio Ballone, with AN/FPS-117(V)
123rd Remote Radar Station Flight, in Capo Frasca, with AN/FPS-117(V)
131st Remote Radar Station Flight, in Jacotenente, with RAT-31DL
132nd Remote Radar Station Flight, in Capo Rizzuto, with RAT-31DL
Latvian Air Force radar stations Radar station with AN/TPS-77(V) Control and Reporting Centre
The Latvian Air Force's Air Operations Centre is located at Lielvārde Air Base and reports to the Baltic Air Surveillance Network's Regional Airspace Surveillance Coordination Centre (RASCC) in Karmėlava, Lithuania, which in turn reports to CAOC Uedem.[15]
Air Force Headquarters, at Lielvārde Air Base
Air Surveillance Squadron, at Lielvārde Air Base
Air Operations Centre, at Lielvārde Air Base
1st Radiotechnical (Radar) Post, at Lielvārde Air Base, with AN/TPS-77(V)
2nd Radiotechnical (Radar) Post, in Audriņi, with AN/TPS-77(V)
3rd Radiotechnical (Radar) Post, in Čalas, with AN/TPS-77(V)
Lithuanian Air Force radar stations Radar station with AN/TPS-77(V) Control and Reporting Centre
The Lithuanian Air Force's Air Operations Control Centre is located in Karmėlava and reports to the Baltic Air Surveillance Network's Regional Airspace Surveillance Coordination Centre (RASCC) co-located in Karmėlava, which in turn reports to CAOC Uedem.
Luxembourg's airspace is monitored and guarded by the Belgian Air Component's Control and Reporting Centre at Beauvechain Air Base.[5]
Montenegro
The Armed Forces of Montenegro do not possess a modern air defense radar and the country's airspace is monitored by Italian Air Force radar sites. The Armed Forces Air Surveillance and Reporting Centre is located at Podgorica Airport in Golubovci and reports to CAOC Torrejón in Spain.
Royal Netherlands Air Force radar stations Radar station with SMART-L GB Control and Reporting Centre
The Royal Netherlands Air Force's Air Operations Centre is located at Nieuw-Milligen and reports to CAOC Uedem. The air force's main radars are being replaced with two modern SMART-L GB radars.
Royal Norwegian Air Force radar stations Radar station with RAT-31SL/N Radar station with SINDRE I Control and Reporting Centre
The Royal Norwegian Air Force's Combined Air Operations Centre (CAOC 3) in Reitan was deactivated in 2008 and its responsibilities were transferred to the Combined Air Operations Centre Finderup (CAOC F). After CAOC F was deactivated in 2013 the responsibility for the air defense of Norway was transferred to CAOC Uedem in Germany and the Royal Norwegian Air Force's Control and Reporting Centre in Sørreisa reports to it. Until 2016 the Royal Norwegian Air Force's radar installations were distributed between two CRCs. That year the CRC Mågerø was disbanded. In its place a wartime mobilization back-up CRC has been formed with a reduction in personnel from the around active 170 duty to about 50 air force home guardsmen.[16] The SINDRE I radars are a variant of the HR-3000 radar, which is also used in the German HADR radars. The newer RAT-31SL/N radars are sometimes designated SINDRE II.
Polish Air Force radar stations Radar station with NUR-12M Radar station with RAT-31DL Radiotechnical Battalion Command and Control Centre
The Polish Armed Forces Operational Command's Air Operations Centre is located in the Warsaw-Pyry neighborhood and reports to CAOC Uedem. The 3rd Wrocław Radiotechnical Brigade is responsible for the operation of the Armed Forces radar equipment. As of 2021, the Polish Air Force possesses three NUR-12M and three RAT-31DL long-range radars making up BACKBONE system, which are listed below.
Portuguese Air Force radar stations (+ one station off map in Madeira) Radar station with HR-3000 Control and Reporting Centre
The Portuguese Air Force's Combined Air Operations Centre (CAOC 10) in Lisbon was deactivated in 2013 and its responsibilities were transferred to CAOC Torrejón in Spain.
Romanian Air Force radar stations Radar station with AN/FPS-117(V) Radar station with WSR-98D Airspace Surveillance Group Command and Control Centre
The Romanian Air Force's Air Operations Centre is headquartered in Balotești and reports to CAOC Torrejón. Additionally, the WSR-98D radar stations in Bârnova, Medgidia, Bobohalma, Timișoara, and Oradea are officially designated and operated as a civilian radar stations by the National Meteorological Administration, however their data is fed into the military air surveillance system as well.
Air Component Command"General comandant aviator Ermil Gheorghiu", in Balotești[20]
Spanish Air Force radar stations (+ two stations off map in the Canary Islands) Radar station with LANZA 3-D Radar station with RAT-31SL/T Command and Control Centre
The Spanish Air Force's Combined Air Operations Centre (CAOC 8) at Torrejón Air Base was deactivated in 2013 and replaced at same location by CAOC Torrejon, which took over the functions of CAOC 5, CAOC 7, CAOC 8 and CAOC 10. CAOC Torrejón is responsible for the NATO airspace South of the Alps.
Combat Air Command, at Torrejón Air Base
Combat Air Command Headquarter (CGMACOM), at Torrejón Air Base
Air Operations Centre / NATO CAOC Torrejón
Command and Control Systems Headquarter (JSMC), at Torrejón Air Base
Central Command and Control Group (GRUCEMAC), at Torrejón Air Base
22nd Air Surveillance Squadron (EVA 22) radar station, in Haría on Lanzarote, with RAT-31SL/T
Sweden
The Swedish Air Force's Air Operations Centre is located at Ärna Air Base, while the air force's control reporting centres are located in underground bunkers in Bålsta and Hästveda. Sweden operates fixed radar sites, which between 2025 and 2028 will be upgraded with Thales SMART-L radars .
Turkish Air Force radar stations Radar station Command and Control Centre
The Turkish Air Force's Combined Air Operations Centre (CAOC 6) in Eskişehir was deactivated in 2013 and its responsibilities were transferred to CAOC Torrejón in Spain. Turkey's Air Force fields a mix of HR-3000, AN/FPS-117, RAT-31SL and RAT-31DL radars, however the exact number of each of these radar and their location in the Turkish radar system is unknown.
Air Force Command (COA), in
Control and Reporting Centre, in Ahlatlıbel
Aerial Surveillance Radar Post, in Ahlatlıbel, with
Royal Air Force radar stations Radar station with Type 92 radar Radar station with Type 101 radar Radar station with AN/FPS-126 Control and Reporting Centre
The Royal Air Force's Air Surveillance and Control System is located at RAF Boulmer, and reports to CAOC Uedem. The RAF operates seven Remote Radar Heads (RRHs) across the UK, which feed back to the Control and Reporting Centre at RAF Boulmer. Under Project Guardian, all of the UK's radar stations and systems are being upgraded and strengthened. The UK is also unique in Europe in possessing a Ballistic Missile Early Warning System (BMEWS) which is based at RAF Fylingdales.
National Air and Space Operations Centre (NASOC), at RAF High Wycombe
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