A stay-behind operation is one where a country places secret operatives or organizations in its own territory, for use in case of a later enemy occupation. The stay-behind operatives would then form the basis of a

resistance movement A resistance movement is an organized group of people that tries to resist or try to overthrow a government or an occupying power, causing disruption and unrest in civil order and stability. Such a movement may seek to achieve its goals through ei ...

, and act as spies from behind enemy lines. Small-scale operations may cover discrete areas, but larger stay-behind operations envisage reacting to the conquest of whole countries. Stay-behind also refers to a military tactic whereby specially trained soldiers let themselves be overrun by enemy forces in order to conduct

intelligence, surveillance, target acquisition, and reconnaissance ISTAR stands for intelligence, surveillance, target acquisition, and reconnaissance. In its macroscopic sense, ISTAR is a practice that links several battlefield functions together to assist a combat force in employing its sensors and managing th ...

tasks often from pre-prepared hides.

History

Stay-behind operations of significant size existed during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. The United Kingdom put in place the

Auxiliary Units The Auxiliary Units, Home Guard Shock Squads or GHQ Auxiliary Units were specially trained, highly secret quasi military units created by the British government during the Second World War with the aim of using irregular warfare in response to ...

. Partisans in

Axis An axis (: axes) may refer to: Mathematics *A specific line (often a directed line) that plays an important role in some contexts. In particular: ** Coordinate axis of a coordinate system *** ''x''-axis, ''y''-axis, ''z''-axis, common names ...

-occupied Soviet territory in the early 1940s operated with a stay-behind element. During the

Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...

, the

North Atlantic Treaty Organization The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental transnational military alliance of 32 member states—30 European and 2 North American. Established in the aftermat ...

(NATO) coordinated and the

Central Intelligence Agency The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...

(CIA) and the British

Secret Intelligence Service The Secret Intelligence Service (SIS), commonly known as MI6 (MI numbers, Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of Human i ...

(SIS) helped to set up clandestine stay-behind networks in many

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

an countries, intending to activate them in the event of

Warsaw Pact The Warsaw Pact (WP), formally the Treaty of Friendship, Co-operation and Mutual Assistance (TFCMA), was a Collective security#Collective defense, collective defense treaty signed in Warsaw, Polish People's Republic, Poland, between the Sovi ...

forces taking over an area. According to Martin Packard they were "financed, armed, and trained in covert resistance activities, including assassination, political provocation and disinformation". These clandestine stay-behind organisations (SBOs) were created and run under the auspices of intelligence services and recruited their agents from amongst the civilian population. Specially selected civilian stay-behind networks or SBOs were created in many Western countries, including Italy, the Netherlands, Belgium, Luxembourg, France, Germany, Switzerland, Norway, Austria and others, including Iran. They prepared to organize resistance, sabotage and intelligence-gathering in occupied (NATO) territory. The most famous of these clandestine stay-behind networks was the Italian

Operation Gladio Operation Gladio was the codename for clandestine " stay-behind" operations of armed resistance that were organized by the Western Union (WU; founded in 1948), and subsequently by NATO (formed in 1949) and by the CIA (established in 1947), in ...

, acknowledged by Italian Prime Minister

Giulio Andreotti Giulio Andreotti ( ; ; 14 January 1919 – 6 May 2013) was an Italian politician and wikt:statesman, statesman who served as the 41st prime minister of Italy in seven governments (1972–1973, 1976–1979, and 1989–1992), and was leader of th ...

on October 24, 1990. Many hidden weapons-caches have been found in Italy, Austria, Germany, the Netherlands and other countries that had been at the disposition of these "secret armies". As late as 1996, the United Kingdom revealed to the German government the existence of stay-behind weapons and equipment caches in

West Berlin West Berlin ( or , ) was a political enclave which comprised the western part of Berlin from 1948 until 1990, during the Cold War. Although West Berlin lacked any sovereignty and was under military occupation until German reunification in 1 ...

. The content of these caches offer an insight into the equipment supplied to (German) stay-behind networks. In two of the secret caches, buried in the Grunewald forest, police found boxes with 9 mm pistols and ammunition, knives, navigation equipment, an RS-6 "spy radio", various manuals, tank- and aircraft-recognition books, a flask of brandy, and chocolate, as well as a copy of ''Total Resistance'', the guerrilla warfare manual written in 1957 by Swiss Major Hans von Dach. During the Cold War, military stay-behind units were usually long-range reconnaissance, surveillance and target acquisition units that were specifically earmarked for operations in the early phase of a potential war (

D-Day The Normandy landings were the landing operations and associated airborne operations on 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during the Second World War. Codenamed Operation Neptune and often referred to as ...

to D+1-5). These units would quickly deploy forward, link up with the rear guard or 'aggressive delaying force' and 'stay-behind' as these forces withdrew, letting themselves be bypassed by advancing Warsaw Pact troops. Exploiting pre-reconnoitred hide sites and caches of arms, ammunition, and radios, they would then start to conduct intelligence gathering operations in what is called static covert surveillance as well as target acquisition for high value targets such as enemy headquarters, troop concentrations, and atomic weapons systems. They would also perform demolition tasks, in what was referred to as the 'demolition belt', at places where bottlenecks were likely to occur for enemy formations. Another task would have been escape and evasion (E&E) assistance to downed pilots and others needing repatriation. The United Kingdom's Territorial Army regiments of SAS and

Honourable Artillery Company The Honourable Artillery Company (HAC) is a reserve regiment in the British Army. Incorporated by royal charter in 1537 by King Henry VIII, it is the oldest regiment in the British Army and is considered the second-oldest military unit in the w ...

provided such stay-behind parties in the UK's sector of West Germany.

List of military stay-behind trained units

NATO *

Special Boat Service The Special Boat Service (SBS) is the special forces unit of the United Kingdom's Royal Navy. The SBS can trace its origins back to the Second World War when the Army Special Boat Section was formed in 1940. After the Second World War, the Roy ...

(

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

) * 21 Special Air Service Regiment (Artists) (Reserve) (

) * 23 Special Air Service Regiment (Reserve) (

) *

(

) * Special Reconnaissance Squadron RAC (

) * 4/73 (Sphinx) Special Observation Post Battery RA (

) * 10th Special Forces Group (

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

) * Escadron Spécial de Recherche (SOE/ESR) (

Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...

) * Fernspäher Companies (

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

) * Korps Commandotroepen (

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

) * 7e Compagnie de Commandos (France) * 1st Paratroopers Brigade, Lochoi Oreinon Katadromon or LOK (

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...

) * Özel Harp Dairesi (

Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...

) Training was conducted at the International Long Range Reconnaissance Patrol School in Weingarten Germany. Warsaw Pact * MfS-Abteilung IV Spezialkampfführung (

East Germany East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from Foundation of East Germany, its formation on 7 October 1949 until German reunification, its reunification with West Germany (FRG) on ...

) * Patriotic Guards (

Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...

) World * Fedayeen Saddam (

Ba'athist Iraq Ba'athist Iraq, officially the Iraqi Republic (1968–1992) and later the Republic of Iraq (1992–2003), was the Iraqi state between 1968 and 2003 under the one-party rule of the Arab Socialist Ba'ath Party – Iraq Region, Iraqi regional bra ...

) * Projekt-27 * Regional Force Surveillance Units (

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

), units of the

Australian Army Reserve The Australian Army Reserve is a collective name given to the military reserve force, reserve units of the Australian Army. Since the Federation of Australia in 1901, the reserve military force has been known by many names, including the Citize ...

that would operate in a stay-behind capacity in the event of an invasion of northern Australia * Territorial Defense (

Yugoslavia , common_name = Yugoslavia , life_span = 1918–19921941–1945: World War II in Yugoslavia#Axis invasion and dismemberment of Yugoslavia, Axis occupation , p1 = Kingdom of SerbiaSerbia , flag_p ...

), non-secret branch of the

Yugoslav People's Army The Yugoslav People's Army (JNA/; Macedonian language, Macedonian, Montenegrin language, Montenegrin and sr-Cyrl-Latn, Југословенска народна армија, Jugoslovenska narodna armija; Croatian language, Croatian and ; , J ...

with an official doctrine to wage

guerrilla warfare Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians, which may include recruited children, use ambushes, sabotage, terrori ...

against a potential occupier.

List of known clandestine stay-behind plans

World War II *

(

) * Werwolf (

Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...

) * Operation Tracer (

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

) * Operation Goldeneye (Gibraltar), designed by Commander

Ian Fleming Ian Lancaster Fleming (28 May 1908 – 12 August 1964) was a British writer, best known for his postwar ''James Bond'' series of spy novels. Fleming came from a wealthy family connected to the merchant bank Robert Fleming & Co., and his ...

of the British

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

*Palestine Post-Occupational Scheme (

Mandatory Palestine Mandatory Palestine was a British Empire, British geopolitical entity that existed between 1920 and 1948 in the Palestine (region), region of Palestine, and after 1922, under the terms of the League of Nations's Mandate for Palestine. After ...

): joint plan between the British SOE and the Palmach to resist a potential Axis occupation before and during the 200 days of dread. SOE Palestine, with assistance from the Jewish Agency, created a secret stay-behind network of cells to resist a potential occupation of Palestine by the Axis.

Moshe Dayan Moshe Dayan (; May 20, 1915 – October 16, 1981) was an Israeli military leader and politician. As commander of the Jerusalem front in the 1948 Arab–Israeli War, Chief of General Staff (Israel), Chief of the General Staff of the Israel Defe ...

set up this clandestine structure. Training for Palmach operatives was conducted at the Special Training Center (STC102) at

Mount Carmel Mount Carmel (; ), also known in Arabic as Mount Mar Elias (; ), is a coastal mountain range in northern Israel stretching from the Mediterranean Sea towards the southeast. The range is a UNESCO biosphere reserve. A number of towns are situat ...

near

Haifa Haifa ( ; , ; ) is the List of cities in Israel, third-largest city in Israel—after Jerusalem and Tel Aviv—with a population of in . The city of Haifa forms part of the Haifa metropolitan area, the third-most populous metropolitan area i ...

. Cold War * (

) Operatiën en Inlichtingen (Operations and Intelligence) was unique among its counterparts in other NATO countries in that it operated autonomously from NATO control. * GLADIO (

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

) * Aginter Press (

Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...

) *Operation (Red) Sheepskin (

) * Austrian Association of Hiking, Sports and Society (OeWSGV, also: ÖWSGV) (

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

) *Plan Bleu, La Rose des Vents, and Arc-en-ciel (

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

) * ROC (

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

) * SDRA8 and STC/Mob (

) * Bund Deutscher Jugend – Technischer Dienst, or TD BJD (

-West) * Kampfgruppe gegen Unmenschlichkeit (A secret stay-behind organisation of West Berlin against the GDR 1948–1959 with strong support of CIA) *

Counter-Guerrilla Counter-Guerrilla () is a Turkish branch of Operation Gladio, a clandestine stay-behind Anti-communism, anti-communist initiative backed by the United States as an expression of the Truman Doctrine. The founding goal of the operation was to erect ...

, Turkish branch of

(

) * Nihtilä-Haahti plan (

Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

) * Projekt-26 (P-26,

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

) * and Informationsbyrån ('IB') in

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

. * Operation Washtub (

- Alaska Territory) * Study and Training Group for Military Reconnaissance (

West Germany West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republi ...

). * Qashqai 1948–1953 (

Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...

)Mark Gasiorowski (2019) The US stay-behind operation in Iran, 1948-1953, Intelligence and National Security, 34:2, 170-188, DOI: 10.1080/02684527.2018.1534639 Post-Cold War * Challenge Project (

)

References

* . {{DEFAULTSORT:Stay-Behind Intelligence operations Psychological warfare techniques Spies by role Urban warfare

History

List of military stay-behind trained units

List of known clandestine stay-behind plans

See also

References