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A spy ship or reconnaissance vessel is a dedicated ship intended to gather intelligence, usually by means of sophisticated electronic eavesdropping. In a wider sense, any ship intended to gather information could be considered a spy ship.

Spy ships are usually controlled by a nation's government, due to the high costs and advanced equipment required. They tend to be parts of the nation's navy, though they may also be operated by secret services.

Naval trawlers masquerade as civilian ships such as fishing trawlers, which could be reasonably expected to remain in a certain area for a long time.

Ships which are used to infiltrate spies or special forces are sometimes also called "spy ships".^[1]

History

An early version of what would become known as a spy ship is the United States civilian cargo ship USS Gold Star (AK-12), which made frequent voyages to Japan, China and the Philippines with cargo and passengers during the 1920s and 1930s.^[2] Starting in 1933 as a station ship she was assigned to monitor internal Japanese Fleet frequencies and direction finder azimuths. She had three intercept operators and one chief radioman supervised by an officer. Gold Star and ground stations provided significant intelligence before the Japanese attack on Pearl Harbor on 7 December 1941.^[3]

Spy ships in the modern sense of being specially built and entirely dedicated to intelligence tasks came into being during the early Cold War, and they are in use by all major powers. Their uses, in addition to listening in on communications and spy on enemy fleet movements, were to monitor nuclear tests and missile launches (especially of potential ICBMs). One of the most important functions for both Cold War spy ship fleets, especially in the 1960s, was the gathering of submarine "signatures" – the patterns of noise that could often identify the specific type of submarine and were thus valuable in anti-submarine warfare. During that era, the United States fielded about 80 vessels, usually classified as "environmental research" craft, while the Soviet Union had around 60 ships, often converted trawlers or hydrographic research ships.^[4]

In the late 1980s, the Soviet fisheries fleet was known for having equipped many of their thousands of ships with sophisticated SIGINT and ELINT equipment, thus functioning as auxiliary spy ships tracking western naval vessels and electronic communications (though their main function remained commercial fishing).^[5]

Operation

A spy ship usually stays in international waters^[6]^[7] (or at least outside territorial waters), so as to not violate territorial borders. From there, it will use its electronic equipment to monitor sea and air traffic, radio and radar^[4] frequencies and also try to intercept and decrypt coded radio or phone communications. This is mostly done via passive means such as radio receivers or passive sonar. Sometimes however, active measures such as radar or sonar may also be used to detect the movement of aircraft, missiles, ships or other vehicles or troops.^[8]^[9] However, this risks revealing the ship's purpose.^{[citation needed]}

As it is located much closer to the surveilled area than a fixed installation (given a close by shoreline), the monitoring is usually much more efficient and in some respects better than even that of spy satellites.^{[citation needed]}

Tracking vessels also have some of the capabilities of spy ships, and as they are controlled by their national governments, they are also intermittently used for similar purposes, such as tracking enemy missile tests.^{[citation needed]}

Soviet AGI trawlers

As the United States Navy began deploying ballistic missile submarines in 1960, the Soviet Union attempted to obtain more information about the capabilities of the UGM-27 Polaris missile and the locations of the submarines capable of launching them. While the Soviet Navy requested more sophisticated ships, they were allocated trawlers (called tra-ou-lery) from the fishing fleet equipped with more sophisticated sensors and communication equipment. Very capable crews were assigned to these trawlers of unremarkable appearance. They were assigned to patrol stations off United States naval bases to photograph and report arrival and departure of United States warships and auxiliaries. Other trawlers of similar appearance would patrol weapons firing ranges used by the United States Navy to observe practice firings of modern weapons and record the acoustic and/or electromagnetic signature of the sonar, search radar, fire-control radar, guidance, and/or command electronics of each weapons system.^[10] The United States Navy officially designated these trawlers as Auxiliary, General Intelligence or AGI, and they were informally known as "tattletales".^[11]

An AGI might be assigned to a single patrol station for as long as six months. These ships were not fast enough to keep up with most warships, but they sometimes congregated around aircraft carriers conducting air operations of the United States Sixth Fleet in the Mediterranean or United States Seventh Fleet in the western Pacific Ocean, or in suspected patrol areas of ballistic missile submarines. After the Cuban Missile Crisis, the Joint Chiefs of Staff authorized a counter AGI program for United States destroyers to come alongside the AGIs to push against them, foul their screws with steel nets, and focus high power electromagnetic transmitters to burn out the amplifying circuitry of their electronic sensors. The AGI crews then revealed their ship-handling skills using superior maneuverability to evade the destroyers' intentions. This jousting in international waters continued until signing of the U.S.–Soviet Incidents at Sea agreement in 1972.^[10]

In 1972, as the U.S. and U.K. partners started operating radar station Cobra Mist, it garnered attention from many Soviet spy trawlers.^[12] A year later, the radar station was shut down due to interference. The source of the interference was never confirmed and some theories still hold Soviet countermeasures responsible. ^[12]

List of spy ships

References

^ French, Howard W. (12 September 2002). "Suspected Spy Ship Salvaged". The New York Times. Retrieved 31 January 2018.
^ Lademan, J. U. Jr. (1973). USS Gold Star - Flagship of the Guam Navy. December 1973. United States Naval Institute Proceedings. pp. 68–69. Retrieved 24 May 2012.
^ National Security Agency - Naval Security Agency Report (1986). "The Origination and Evolution of Radio Traffic Analysis - The Period between the Wars" (PDF). NSA. National Security Agency. Archived from the original (PDF) on 18 September 2013. Retrieved 4 June 2014. DOCID: 3362395 - Approved for Release by NSA. on 06-16-2008, FOIA Case #51505 - UNCLASSIFIED See pages 31 & 32.
^ ^a ^b "The Ferret Fleets". Time. 2 February 1968. Archived from the original on 24 October 2008. Retrieved 31 January 2018.
^ Kim, Byung Ki (6 September 1988). "Moscow's South Pacific Fishing Fleet Is Much More Than It Seems". Asian Studies Backgrounder (80). The Heritage Foundation. Archived from the original on 28 February 2009.
^ Lu, Fiona (16 August 2003). "Legislative group says fishermen are spying for Beijing". Taipei Times. p. 3.
^ "Spy Ship Off L.I. Awaits Trident Sub". The New York Times. The Associated Press. 13 June 1981. Retrieved 31 January 2018.
^ "Soviet Spy Ship Waiting to Observe Trident Test". The New York Times. The Associated Press. 14 June 1981. Archived from the original on 23 October 2012. Retrieved 31 January 2018.
^ "Don't Arm Serbs, US Warns". BBC. 3 April 1999. Retrieved 31 January 2018.
^ ^a ^b Murphy, John. "Cold War Warriors: Spy Ships - Theirs and Ours". Emmitsburg News-Journal. Retrieved 14 September 2016.
^ Gregory, William H. (1984). "Their Tattletales (Our Problems)". Proceedings. 110 (2). United States Naval Institute: 97–99.
^ ^a ^b Piesing, Mark. "The eerie emptiness of 'Britain's Area 51'". British Broadcasting Corporation Future. Retrieved 9 January 2023.
^ Puby, Manu (16 March 2021). "India commissions secretive nuclear missile tracking vessel". The Economic Times. Retrieved 16 March 2021.
^ "Norge får to spionskip - satser store summer på "Eger"". VG (in Norwegian). Retrieved 19 October 2017.
^ "Spy ship changes name and continues intelligence mission". The Independent Barents Observer. Retrieved 19 October 2017.
^ "New spy vessel to keep track with "unpredictable" Russia". Barentsobserver. Retrieved 19 October 2017.
^ "Pakistan gets spy ship from China to track ballistic missiles". 18 March 2024.
^ "Ruszyła budowa 2. okrętu rozpoznania elektronicznego dla Marynarki Wojennej" [Construction of the second electronic reconnaissance ship for the Navy has started]. National Security Bureau (in Polish). 15 November 2023. Retrieved 30 July 2024.
^ Sanger, David E.; Schmitt, Eric (26 October 2015). "Russian Ships Near Data Cables Are Too Close for U.S. Comfort". The New York Times.

[1] French, Howard W. (12 September 2002). "Suspected Spy Ship Salvaged". The New York Times. Retrieved 31 January 2018.

[Lademan-2] Lademan, J. U. Jr. (1973). USS Gold Star - Flagship of the Guam Navy. December 1973. United States Naval Institute Proceedings. pp. 68–69. Retrieved 24 May 2012.

[NSA-3] National Security Agency - Naval Security Agency Report (1986). "The Origination and Evolution of Radio Traffic Analysis - The Period between the Wars" (PDF). NSA. National Security Agency. Archived from the original (PDF) on 18 September 2013. Retrieved 4 June 2014. DOCID: 3362395 - Approved for Release by NSA. on 06-16-2008, FOIA Case #51505 - UNCLASSIFIED See pages 31 & 32.

[TIME-4] "The Ferret Fleets". Time. 2 February 1968. Archived from the original on 24 October 2008. Retrieved 31 January 2018.

[5] Kim, Byung Ki (6 September 1988). "Moscow's South Pacific Fishing Fleet Is Much More Than It Seems". Asian Studies Backgrounder (80). The Heritage Foundation. Archived from the original on 28 February 2009.

[6] Lu, Fiona (16 August 2003). "Legislative group says fishermen are spying for Beijing". Taipei Times. p. 3.

[7] "Spy Ship Off L.I. Awaits Trident Sub". The New York Times. The Associated Press. 13 June 1981. Retrieved 31 January 2018.

[8] "Soviet Spy Ship Waiting to Observe Trident Test". The New York Times. The Associated Press. 14 June 1981. Archived from the original on 23 October 2012. Retrieved 31 January 2018.

[9] "Don't Arm Serbs, US Warns". BBC. 3 April 1999. Retrieved 31 January 2018.

[enj-10] Murphy, John. "Cold War Warriors: Spy Ships - Theirs and Ours". Emmitsburg News-Journal. Retrieved 14 September 2016.

[nip-11] Gregory, William H. (1984). "Their Tattletales (Our Problems)". Proceedings. 110 (2). United States Naval Institute: 97–99.

[bbc-12] Piesing, Mark. "The eerie emptiness of 'Britain's Area 51'". British Broadcasting Corporation Future. Retrieved 9 January 2023.

[ETMarch21-13] Puby, Manu (16 March 2021). "India commissions secretive nuclear missile tracking vessel". The Economic Times. Retrieved 16 March 2021.

[14] "Norge får to spionskip - satser store summer på "Eger"". VG (in Norwegian). Retrieved 19 October 2017.

[15] "Spy ship changes name and continues intelligence mission". The Independent Barents Observer. Retrieved 19 October 2017.

[16] "New spy vessel to keep track with "unpredictable" Russia". Barentsobserver. Retrieved 19 October 2017.

[17] "Pakistan gets spy ship from China to track ballistic missiles". 18 March 2024.

[18] "Ruszyła budowa 2. okrętu rozpoznania elektronicznego dla Marynarki Wojennej" [Construction of the second electronic reconnaissance ship for the Navy has started]. National Security Bureau (in Polish). 15 November 2023. Retrieved 30 July 2024.

[NYT-19] Sanger, David E.; Schmitt, Eric (26 October 2015). "Russian Ships Near Data Cables Are Too Close for U.S. Comfort". The New York Times.

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@@ Line 1: / Line 1: @@
+{{Short description|Ship intended to gather intelligence}}
 {{redirect|Spy Ship|the 1942 film|Spy Ship (film)}}
 {{Use dmy dates|date=January 2018}}
 [[File:USS Liberty (AGTR-5) underway in Chesapeake Bay on 29 July 1967 (K-39927).jpg|thumb|{{USS|Liberty|AGTR-5|6}}, a "[[technical research ship]]", in 1967]]
-[[File:Oker A 53 Hamburg 2261.jpg|thumb|right|''Oker'', an {{sclass-|Oste|fleet service ship|0}} [[ELINT]] and [[reconnaissance]] ship, of the [[German Navy]]]]
+[[File:Oker A 53 Hamburg 2261.jpg|thumb|right|''Oker'', an {{Sclass|Oste|fleet service ship|0}} [[ELINT]] and [[reconnaissance]] ship, of the [[German Navy]]]]
-A '''spy ship''' or reconnaissance vessel is a dedicated [[ship]] intended to gather [[Intelligence (information gathering)|intelligence]], usually by means of sophisticated [[SIGINT|electronic eavesdropping]]. In a wider sense, any ship intended to gather information could be considered a spy ship.
+A '''spy ship''' or '''reconnaissance vessel''' is a dedicated [[ship]] intended to gather [[intelligence (information gathering)|intelligence]], usually by means of sophisticated [[SIGINT|electronic eavesdropping]]. In a wider sense, any ship intended to gather information could be considered a spy ship.
 Spy ships are usually controlled by a nation's [[government]], due to the high costs and advanced equipment required. They tend to be parts of the nation's [[navy]], though they may also be operated by [[Intelligence agency|secret service]]s.
@@ Line 12: / Line 13: @@
 ==History==
+An early version of what would become known as a spy ship is the [[United States]] civilian [[cargo ship]] {{USS|Gold Star|AK-12}}, which made frequent voyages to [[Empire of Japan|Japan]], [[China]] and the [[Philippines]] with cargo and passengers during the 1920s and 1930s.<ref name=Lademan>{{Cite book |last=Lademan |first=J. U. Jr. |title=USS Gold Star - Flagship of the Guam Navy |publisher=United States Naval Institute Proceedings |series=December 1973 |year=1973 |url =http://www.usni.org/magazines/proceedings  |access-date = 24 May 2012 |pages= 68–69}}</ref> Starting in 1933 as a station ship she was assigned to monitor internal Japanese Fleet frequencies and direction finder azimuths. She had three intercept operators and one chief radioman supervised by an officer. ''Gold Star'' and ground stations  provided significant intelligence before the Japanese attack on Pearl Harbor on 7 December 1941.<ref name=NSA>{{cite web |access-date=4 June 2014 |url=http://www.nsa.gov/public_info/_files/cryptologic_quarterly/the_period_between_wars.pdf |title=The Origination and Evolution of Radio Traffic Analysis - The Period between the Wars |author=National Security Agency - Naval Security Agency Report |work=NSA |publisher=National Security Agency |year=1986 |url-status=dead |archive-url=https://web.archive.org/web/20130918021133/http://www.nsa.gov/public_info/_files/cryptologic_quarterly/the_period_between_wars.pdf |archive-date=18 September 2013 }} DOCID: 3362395 - Approved for Release by NSA. on 06-16-2008, FOIA Case #51505 - UNCLASSIFIED See pages 31 & 32.</ref>
-An early version of what would become known as a spy ship is the United States civilian [[cargo ship]] {{USS|Gold Star|AK-12}}, which made frequent voyages to [[Empire of Japan|Japan]], China, and the [[Philippines]] with cargo and passengers during the 1920s and 1930s. <ref name=Lademan>{{Cite book |last=Lademan |first=J. U. Jr. |title=USS Gold Star - Flagship of the Guam Navy |publisher=United States Naval Institute Proceedings |series=December 1973 |year=1973 |url =http://www.usni.org/magazines/proceedings  |access-date = May 24, 2012 |pages= 68–69}}</ref> Starting in 1933 as a station ship she was assigned to monitor internal Japanese Fleet frequencies and direction finder azimuths. She had three intercept operators and one chief radioman supervised by an officer. ''Gold Star'' and ground stations  provided significant intelligence before the Japanese attack on Pearl Harbor on December 7, 1941.<ref name=NSA>{{cite web |access-date=June 4, 2014 |url=http://www.nsa.gov/public_info/_files/cryptologic_quarterly/the_period_between_wars.pdf |title=The Origination and Evolution of Radio Traffic Analysis - The Period between the Wars |author=National Security Agency - Naval Security Agency Report |work=NSA |publisher=National Security Agency |year=1986 |url-status=dead |archive-url=https://web.archive.org/web/20130918021133/http://www.nsa.gov/public_info/_files/cryptologic_quarterly/the_period_between_wars.pdf |archive-date=September 18, 2013 }} DOCID: 3362395 - Approved for Release by NSA. on 06-16-2008, FOIA Case #51505 - UNCLASSIFIED See pages 31 & 32.</ref>
 Spy ships in the modern sense of being specially built and entirely dedicated to intelligence tasks came into being during the early [[Cold War]], and they are in use by all major powers. Their uses, in addition to listening in on communications and spy on enemy fleet movements, were to monitor [[nuclear test]]s and [[missile]] launches (especially of potential [[ICBM]]s).
 One of the most important functions for both Cold War spy ship fleets, especially in the 1960s, was the gathering of [[submarine]] "signatures"{{spaced ndash}}the patterns of noise that could often identify the specific type of submarine and were thus valuable in [[anti-submarine warfare]]. During that era, the United States fielded about 80 vessels, usually classified as "environmental research" craft, while the Soviet Union had around 60 ships, often converted trawlers or [[Russian Hydrographic Service|hydrographic]] research ships.<ref name="TIME">{{cite magazine |url=http://www.time.com/time/magazine/article/0,9171,837783,00.html |archive-url=https://web.archive.org/web/20081024164648/http://www.time.com/time/magazine/article/0,9171,837783,00.html |url-status=dead |archive-date=24 October 2008 |title=The Ferret Fleets |magazine=[[Time (magazine)|Time]] |date=2 February 1968 |access-date=31 January 2018}}</ref>
-In the late 1980s, the Soviet [[Fishing fleet|fisheries fleet]] was known for having equipped many of their thousands of ships with sophisticated [[SIGINT]] and [[ELINT]] equipment, thus functioning as auxiliary spy ships tracking western naval vessels and electronic communications (though their main function remained commercial fishing).<ref>{{cite web |url=http://www.heritage.org/Research/RussiaandEurasia/asb80.cfm |title=Moscow's South Pacific Fishing Fleet Is Much More Than It Seems |last=Kim |first=Byung Ki |publisher=[[The Heritage Foundation]] |journal=Asian Studies Backgrounder |number=80 |date=6 September 1988 |url-status=dead |archive-url=https://web.archive.org/web/20090228115204/http://www.heritage.org/Research/RussiaandEurasia/asb80.cfm |archive-date=28 February 2009 |df=dmy-all }}</ref>
+In the late 1980s, the Soviet [[Fishing fleet|fisheries fleet]] was known for having equipped many of their thousands of ships with sophisticated [[SIGINT]] and [[ELINT]] equipment, thus functioning as auxiliary spy ships tracking western naval vessels and electronic communications (though their main function remained commercial fishing).<ref>{{cite journal |url=http://www.heritage.org/Research/RussiaandEurasia/asb80.cfm |title=Moscow's South Pacific Fishing Fleet Is Much More Than It Seems |last=Kim |first=Byung Ki |publisher=[[The Heritage Foundation]] |journal=Asian Studies Backgrounder |number=80 |date=6 September 1988 |url-status=dead |archive-url=https://web.archive.org/web/20090228115204/http://www.heritage.org/Research/RussiaandEurasia/asb80.cfm |archive-date=28 February 2009 |df=dmy-all }}</ref>
 ==Operation==
 [[File:USNS Vanguard.jpg|thumb|While [[USNS Mission San Fernando (T-AO-122)|USNS ''Vanguard'']] was not strictly a spy ship, being used for space tracking, there is some overlap between her capabilities and those of a spy ship.]]
-A spy ship usually stays in [[international waters]]<ref>{{cite news |url=http://www.taipeitimes.com/News/taiwan/archives/2003/08/16/2003063942 |title=Legislative group says fishermen are spying for Beijing |work=[[Taipei Times]] |last=Lu |first=Fiona |date=16 August 2003 |pages=3}}</ref><ref>{{cite news |url=https://query.nytimes.com/gst/fullpage.html?res=950CE6DA1338F930A25755C0A967948260&sec=&spon=&partner=permalink&exprod=permalink |title=Spy Ship Off L.I. Awaits Trident Sub |work=The New York Times |agency=[[The Associated Press]] |date=13 June 1981 |access-date=31 January 2018}}</ref> (or at least outside territorial waters), so as to not violate territorial [[border]]s. From there, it will use its electronic equipment to monitor sea and air traffic, radio and radar<ref name="TIME"/> frequencies and also try to intercept and [[decrypt]] coded [[radio]] or [[phone]] communications. This is mostly done via passive means such as [[radio]] receivers or passive [[sonar]]. Sometimes however, active measures such as [[radar]] or sonar may also be used to detect the movement of [[aircraft]], [[missile]]s, [[ship]]s or other vehicles or troops.<ref>{{cite news |url=https://query.nytimes.com/gst/fullpage.html?res=9E01E6D91338F937A25755C0A967948260&sec=&spon=&partner=permalink&exprod=permalink |title=Soviet Spy Ship Waiting to Observe Trident Test |work=The New York Times |agency=The Associated Press |date=14 June 1981 |access-date=31 January 2018}}</ref><ref>{{cite news |url=http://news.bbc.co.uk/1/hi/world/europe/310928.stm |title=Don't Arm Serbs, US Warns |work=[[BBC]] |date=3 April 1999 |access-date=31 January 2018}}</ref> However, this risks revealing the ship's purpose.
+A spy ship usually stays in [[international waters]]<ref>{{cite news |url=http://www.taipeitimes.com/News/taiwan/archives/2003/08/16/2003063942 |title=Legislative group says fishermen are spying for Beijing |work=[[Taipei Times]] |last=Lu |first=Fiona |date=16 August 2003 |pages=3}}</ref><ref>{{cite news |url=https://query.nytimes.com/gst/fullpage.html?res=950CE6DA1338F930A25755C0A967948260&sec=&spon=&partner=permalink&exprod=permalink |title=Spy Ship Off L.I. Awaits Trident Sub |work=The New York Times |agency=[[The Associated Press]] |date=13 June 1981 |access-date=31 January 2018}}</ref> (or at least outside territorial waters), so as to not violate territorial [[border]]s. From there, it will use its electronic equipment to [[Surveillance|monitor]] sea and air traffic, [[radio]] and [[radar]]<ref name="TIME"/> frequencies and also try to intercept and [[decrypt]] coded radio or [[phone]] communications. This is mostly done via passive means such as radio receivers or passive [[sonar]]. Sometimes however, active measures such as radar or sonar may also be used to detect the movement of [[aircraft]], [[missile]]s, [[ship]]s or other vehicles or troops.<ref>{{cite news |date=June 14, 1981 |title=Soviet Spy Ship Waiting to Observe Trident Test |work=[[The New York Times]] |agency=[[The Associated Press]] |url=https://query.nytimes.com/gst/fullpage.html?res=9E01E6D91338F937A25755C0A967948260&sec=&spon=&partner=permalink&exprod=permalink |url-status=live |url-access=subscription |access-date=January 31, 2018 |archive-url=https://web.archive.org/web/20121023001648/https://www.nytimes.com/1981/06/14/us/soviet-spy-ship-waiting-to-observe-trident-test.html |archive-date=October 23, 2012}}</ref><ref>{{cite news |url=http://news.bbc.co.uk/1/hi/world/europe/310928.stm |title=Don't Arm Serbs, US Warns |work=[[BBC]] |date=3 April 1999 |access-date=31 January 2018}}</ref> However, this risks revealing the ship's purpose.{{citation needed|date=December 2021}}
-As it is located much closer to the surveilled area than a fixed installation (given a close by [[shoreline]]), the monitoring is usually much more efficient and in some respects better than even that of spy satellites.
+As it is located much closer to the [[Surveillance|surveilled]] area than a fixed installation (given a close by [[shoreline]]), the monitoring is usually much more efficient and in some respects better than even that of spy satellites.{{citation needed|date=December 2021}}
-[[Tracking ship|Tracking vessels]] also have some of the capabilities of spy ships, and as they are controlled by their national governments, they are also intermittently used for similar purposes, such as tracking enemy missile tests.
+[[Tracking ship|Tracking vessels]] also have some of the capabilities of spy ships, and as they are controlled by their national governments, they are also intermittently used for similar purposes, such as tracking enemy missile tests.{{citation needed|date=December 2021}}
 ==Soviet AGI trawlers==
-As the United States Navy began deploying [[ballistic missile submarine]]s in 1960, the Soviet Union attempted to obtain more information about the capabilities of the [[UGM-27 Polaris]] missile and the locations of the submarines capable of launching them.  While the Soviet Navy requested more sophisticated ships, they were allocated trawlers (called ''tral’shchiki'') from the fishing fleet equipped with more sophisticated sensors and communication equipment. Very capable crews were assigned to these trawlers of unremarkable appearance. They were assigned to patrol stations off United States naval bases to photograph and report arrival and departure of United States warships and auxiliaries. Other trawlers of similar appearance would patrol weapons firing ranges used by the United States Navy to observe practice firings of modern weapons and record the acoustic and/or electromagnetic signature of the sonar, search radar, fire-control radar, guidance, and/or command electronics of each weapons system.<ref name=enj>{{cite web |url=http://www.emmitsburg.net/archive_list/articles/misc/cww/2011/spy_ships.htm |title=Cold War Warriors: Spy Ships - Theirs and Ours |last=Murphy |first=John |publisher=Emmitsburg News-Journal |access-date=14 September 2016 }}</ref>  The United States Navy officially designated these trawlers as Auxiliary, General Intelligence or AGI, and they were informally known as "tattletales".<ref name=nip>{{cite journal |last=Gregory |first=William H. |year=1984 |title=Their Tattletales (Our Problems) |journal=[[Proceedings (magazine)|Proceedings]] |volume=110 |issue=2 |pages=97–99 |publisher=[[United States Naval Institute]] }}</ref>
+As the United States Navy began deploying [[ballistic missile submarine]]s in 1960, the Soviet Union attempted to obtain more information about the capabilities of the [[UGM-27 Polaris]] missile and the locations of the submarines capable of launching them.  While the Soviet Navy requested more sophisticated ships, they were allocated trawlers (called ''tra-ou-lery'') from the fishing fleet equipped with more sophisticated sensors and communication equipment. Very capable crews were assigned to these trawlers of unremarkable appearance. They were assigned to patrol stations off United States naval bases to photograph and report arrival and departure of United States warships and auxiliaries. Other trawlers of similar appearance would patrol weapons firing ranges used by the United States Navy to observe practice firings of modern weapons and record the acoustic and/or electromagnetic signature of the sonar, search radar, fire-control radar, guidance, and/or command electronics of each weapons system.<ref name=enj>{{cite web |url=http://www.emmitsburg.net/archive_list/articles/misc/cww/2011/spy_ships.htm |title=Cold War Warriors: Spy Ships - Theirs and Ours |last=Murphy |first=John |publisher=Emmitsburg News-Journal |access-date=14 September 2016 }}</ref>  The United States Navy officially designated these trawlers as Auxiliary, General Intelligence or AGI, and they were informally known as "tattletales".<ref name=nip>{{cite journal |last=Gregory |first=William H. |year=1984 |title=Their Tattletales (Our Problems) |journal=[[Proceedings (magazine)|Proceedings]] |volume=110 |issue=2 |pages=97–99 |publisher=[[United States Naval Institute]] }}</ref>
 An AGI might be assigned to a single patrol station for as long as six months.  These ships were not fast enough to keep up with most warships, but they sometimes congregated around [[aircraft carrier]]s conducting [[Modern United States Navy carrier air operations|air operations]] of the [[United States Sixth Fleet]] in the [[Mediterranean]] or [[United States Seventh Fleet]] in the western [[Pacific Ocean]], or in suspected patrol areas of ballistic missile submarines.  After the [[Cuban Missile Crisis]], the [[Joint Chiefs of Staff]] authorized a ''counter AGI program'' for United States [[destroyer]]s to come alongside the AGIs to push against them, foul their [[propeller|screws]] with steel nets, and focus high power electromagnetic transmitters to burn out the amplifying circuitry of their electronic sensors.  The AGI crews then revealed their ship-handling skills using superior maneuverability to evade the destroyers' intentions.  This jousting in international waters continued until signing of the [[U.S.–Soviet Incidents at Sea agreement]] in 1972.<ref name=enj/>
+In 1972, as the U.S. and U.K. partners started operating radar station [[Cobra Mist]], it garnered attention from many Soviet spy trawlers.<ref name=bbc>{{cite web |url=https://www.bbc.com/future/article/20230106-the-eerie-emptiness-of-britains-area-51 |title=The eerie emptiness of 'Britain's Area 51' |last=Piesing |first=Mark |publisher=British Broadcasting Corporation Future |access-date=9 January 2023 }}</ref> A year later, the radar station was shut down due to interference. The source of the interference was never confirmed and some theories still hold Soviet countermeasures responsible. <ref name=bbc>{{cite web |url=https://www.bbc.com/future/article/20230106-the-eerie-emptiness-of-britains-area-51 |title=The eerie emptiness of 'Britain's Area 51' |last=Piesing |first=Mark |publisher=British Broadcasting Corporation Future |access-date=9 January 2023 }}</ref>
 ==List of spy ships==
+{{Div col|colwidth=20em}}
 * [[Argentine Navy]]
 ** {{ship|ARA|Narwal}}
@@ Line 41: / Line 45: @@
 ** [[Type 814A spy ship]]
 ** [[Type 815 spy ship]]
+** [[Yuan Wang-class tracking ship]]
 * [[Finnish Navy]]
-** {{ship|Finnish ship|Kustaanmiekka||2}} (Decommissioned)
+** {{ship|Finnish ship|Kustaanmiekka ||2}} (Decommissioned)
 * [[French Navy]]
 ** {{ship|French ship|Dupuy de Lôme|A759|2}}
 * [[German Navy]]
-** {{sclass-|Oste|fleet service ship|1}}
+** {{Sclass|Oste|fleet service ship|1}}
 * [[Indian Navy]]
+**[[INS Anvesh]]**
-** [[INS Dhruv]], originally a nuclear missile and satellite tracking vessel can also gather electronic intelligence.<ref name="ETMarch21">{{Cite news|last=Puby|first=Manu|date=2021-03-16|title=India commissions secretive nuclear missile tracking vessel|language=en-IN|newspaper=The Economic Times|url=https://economictimes.indiatimes.com/news/defence/india-commissions-secretive-n-missile-tracking-vessel/articleshow/81517925.cms|access-date=2021-03-16|issn=}}</ref>
+** [[INS Dhruv]]<ref name="ETMarch21">{{Cite news|last=Puby|first=Manu|date=2021-03-16|title=India commissions secretive nuclear missile tracking vessel|language=en-IN|newspaper=The Economic Times|url=https://economictimes.indiatimes.com/news/defence/india-commissions-secretive-n-missile-tracking-vessel/articleshow/81517925.cms|access-date=2021-03-16|issn=}}</ref>
 * [[Italian Navy]]
-**{{ship|Italian ship|Elettra|A5340|2}} multipurpose ship
+**{{ship|Italian ship|Elettra|A5340|2}}
 * [[Royal Norwegian Navy]]
-** {{ship||Marjata||2}} (1992)<ref>{{Cite news|url=https://www.vg.no/nyheter/innenriks/forsvaret/norge-faar-to-spionskip-satser-store-summer-paa-eger/a/23648586/|title=Norge får to spionskip - satser store summer på "Eger"|work=VG|access-date=19 October 2017|language=no}}</ref><ref>{{Cite news|url=https://thebarentsobserver.com/en/security/2016/03/spy-ship-changes-name-and-continue-intelligence-mission|title=Spy ship changes name and continues intelligence mission|work=The Independent Barents Observer|access-date=19 October 2017|language=en}}</ref>
+** [[FS Eger|''Marjata'' (1992)]]<ref>{{Cite news|url=https://www.vg.no/nyheter/innenriks/forsvaret/norge-faar-to-spionskip-satser-store-summer-paa-eger/a/23648586/|title=Norge får to spionskip - satser store summer på "Eger"|work=VG|access-date=19 October 2017|language=no}}</ref><ref>{{Cite news|url=https://thebarentsobserver.com/en/security/2016/03/spy-ship-changes-name-and-continue-intelligence-mission|title=Spy ship changes name and continues intelligence mission|work=The Independent Barents Observer|access-date=19 October 2017|language=en}}</ref>
 ** [[FS Marjata (2014)|''Marjata'' (2014)]]<ref>{{Cite news|url=http://barentsobserver.com/en/security/2014/12/new-spy-vessel-keep-track-unpredictable-russia-10-12|title=New spy vessel to keep track with "unpredictable" Russia|work=Barentsobserver|access-date=19 October 2017|language=en}}</ref>
+* [[Pakistan Navy]]
-* [[Polish Navy]] has two officially acknowledged to be electronic surveillance ships
+** [[PNS Rizwan|PNS ''Rizwan'']]<ref>{{Cite web|title=Pakistan gets spy ship from China to track ballistic missiles |date=18 March 2024|url=https://thenewsmill.com/2024/03/answer-to-ins-dhruv-pakistan-gets-spy-ship-from-china-to-track-ballistic-missiles/}}</ref>
-** {{ORP|Nawigator}}, originally claimed to be a navigational training ship.
+* [[Polish Navy]]
-** {{ORP|Hydrograf}}, originally claimed to be a research ship.
+** {{ORP|Nawigator}}
+** {{ORP|Hydrograf}}
+** {{ORP|Henryk Zygalski}}<ref>{{Cite web |url=https://www.bbn.gov.pl/pl/wydarzenia/9773,Ruszyla-budowa-2-okretu-rozpoznania-elektronicznego-dla-Marynarki-Wojennej.html |title=Ruszyła budowa 2. okrętu rozpoznania elektronicznego dla Marynarki Wojennej |date=2023-11-15 |access-date=2024-07-30 |website=[[National Security Bureau (Poland)|National Security Bureau]] |language=pl |trans-title=Construction of the second electronic reconnaissance ship for the Navy has started}}</ref>
 * [[Russian Navy]]
 ** See also: [[List of active Russian Navy ships#Special-purpose ships]]
-** {{sclass-|Primor'ye|surveillance ship|1}}
+** {{Sclass|Primor'ye|surveillance ship|1}}
-** {{sclass-|Balzam|intelligence ship|1}}
+** {{Sclass|Balzam|intelligence ship|1}}
-** {{sclass-|Vishnya|intelligence ship|1}}
+** {{Sclass|Yury Ivanov|intelligence ship|1}}
+** {{Sclass|Vishnya|intelligence ship|1}}
-** {{ship|Russian ship|Yantar||2}}<ref name="NYT">{{cite news |url=https://www.nytimes.com/2015/10/26/world/europe/russian-presence-near-undersea-cables-concerns-us.html?_r=0 |newspaper=[[The New York Times]] |date=26 October 2015 |first=David E. |last=Sanger |first2=Eric |last2=Schmitt |title=Russian Ships Near Data Cables Are Too Close for U.S. Comfort}}</ref>
+** {{ship|Russian ship|Yantar||2}}<ref name="NYT">{{cite news |url=https://www.nytimes.com/2015/10/26/world/europe/russian-presence-near-undersea-cables-concerns-us.html?_r=0 |newspaper=[[The New York Times]] |date=26 October 2015 |first1=David E. |last1=Sanger |first2=Eric |last2=Schmitt |title=Russian Ships Near Data Cables Are Too Close for U.S. Comfort}}</ref>
 * [[Spanish Navy]]
+** ''Alerta''
-**''Alerta'', former East German AGI ''Jasmund'' refitted with modern equipment.
 * [[Swedish Navy]]
+** {{HSwMS|Artemis||}}
 ** {{HSwMS|Orion|A201|6}}
 ** {{HSwMS|Carlskrona|P04|6}}
+* [[Turkish Navy]]
+** {{TCG|Ufuk}}
 * [[United States Navy]]:
 ** {{USS|Oxford|AGTR-1|6}}
@@ Line 81: / Line 94: @@
 ** {{USNS|Sgt. Joseph E. Muller|T-AG-171|6}}
 ** {{USS|Sphinx|ARL-24|6}}
+{{Div col end}}
 ==See also==
 * [[Technical research ship]] (a class of US spy ships of the early Cold War)
-* [[USS Liberty incident]]
+* [[USS Liberty incident|USS ''Liberty'' incident]]
 * [[Battle of Amami-Ōshima]]
 ==References==
-{{Reflist|30em}}
+{{Reflist}}
 [[Category:Ship types]]