Nuclear Program Of Spain
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Project Islero was an attempted
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many countries in the Americas **Spanish cuisine **Spanish history **Spanish culture ...
nuclear program. Named after
Islero Islero was a Miura bull famed for killing the celebrated Bullfighting, bullfighter Manolete on August 28, 1947. Bulls from the Miura ranch, located near Seville, Spain, are known for being large and ferocious. Islero had poor eyesight and tend ...
, the bull which fell the famous bullfighter
Manolete Manuel Laureano Rodríguez Sánchez (4 July 1917 – 29 August 1947), known as Manolete, was a Spanish bullfighter. Career Manuel Laureano Rodríguez Sánchez was the son of a bullfighter (who also went by the name Manolete) and his wife An ...
, the program was created by Generals
Agustín Muñoz Grandes Agustín Muñoz Grandes (27 January 1896 – 11 July 1970) was a Spanish general, and politician, vice-president of the Spanish Government and minister with Francisco Franco several times; also known as the commander of the Blue Division between ...
and in 1963. Although Spain possessed the second largest uranium deposits in the world at the time, it was not until the Palomares Incident of 1966 that Spain would gain the technological breakthrough to conduct serious hydrogen bomb research. By reverse-engineering the Teller-Ulam process, the project was able to shift to usage of
plutonium-239 Plutonium-239 ( or Pu-239) is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three main iso ...
. Yet, in 1966,
Franco Franco may refer to: Name * Franco (name) * Francisco Franco (1892–1975), Spanish general and dictator of Spain from 1939 to 1975 * Franco Luambo (1938–1989), Congolese musician, the "Grand Maître" * Franco of Cologne (mid to late 13th cent ...
paused the military research, shifting efforts to nuclear reactor construction and plutonium production. However, the program was resumed in 1971, with help from
Charles de Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
's France to refine the material and fund the nuclear facilities. Lasting from the of
Francisco Franco Francisco Franco Bahamonde (born Francisco Paulino Hermenegildo Teódulo Franco Bahamonde; 4 December 1892 – 20 November 1975) was a Spanish general and dictator who led the Nationalist faction (Spanish Civil War), Nationalist forces i ...
's rule into the beginning of the
democratic transition A democratic transition describes a phase in a country's political system as a result of an ongoing change from an authoritarian regime to a Democracy, democratic one. The process is known as democratisation, political changes moving in a democrat ...
, the project was prematurely cancelled due to American pressures in 1981, although it only formally ended in 1987 under
Felipe González Felipe González Márquez (; born 5 March 1942) is a retired Spanish politician who was Prime Minister of Spain from 1982 to 1996 and leader of the Spanish Socialist Workers' Party from 1974 to 1997. He is the longest-serving democratically- ...
. Although the project never developed a
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear exp ...
, the country possessed the capabilities to both design and manufacture the necessary components needed for a
hydrogen bomb A thermonuclear weapon, fusion weapon or hydrogen bomb (H-bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lo ...
, with the Spanish Foreign Minister,
José María de Areilza José is a predominantly Spanish and Portuguese form of the given name Joseph. While spelled alike, this name is pronounced very differently in each of the two languages: Spanish ; Portuguese (or ). In French, the name ''José'', pronounced , ...
, declaring in 1976 that Spain would be able to manufacture the bomb "in seven or eight years if we set our minds to it."


Background


The JIA and JEN

In September 1948, by means of a secret decree,
Francisco Franco Francisco Franco Bahamonde (born Francisco Paulino Hermenegildo Teódulo Franco Bahamonde; 4 December 1892 – 20 November 1975) was a Spanish general and dictator who led the Nationalist faction (Spanish Civil War), Nationalist forces i ...
created the Junta de Investigaciones Atómicas (JIA), or Board for Nuclear Research. Constituted on October 8, the board was formed by (general director and president until 1974),
Manuel Lora-Tamayo Manuel Lora-Tamayo Martín (21 January 1904 – 22 August 2002) was a Spanish politician who served as Minister of National Education of Spain (later renamed as Education and Science) between 1962 and 1968, during the Francoist dictatorship ...
, and . In 1951, the secret phase was declared over, and the JIA was renamed the Junta de Energía Nuclear (JEN), or Board of Nuclear Energy, inaugurated in the
University City of Madrid The University City of Madrid (), also called the Campus de Moncloa, is a complex in the Moncloa-Aravaca district of Madrid, Spain, that holds buildings of two universities and several related organizations. The campus was built between 1929 and 1 ...
under the presidency of General
Juan Vigón Juan Vigón may refer to: *Juan Vigón (general) Juan Vigón Suerodíaz, Marquis of Vigón (30 October 1880, Colunga – 25 May 1955, Madrid) was a Spanish general who fought in the Spanish Civil War for the Nationalist faction. Biography ...
and with Otero de Navascués as general director. The purpose of the JEN was to work "as a research center, as an advisory body to the Government, as an institute in charge of safety and
protection Protection is any measure taken to guard something against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although ...
against the danger of
ionizing radiation Ionizing (ionising) radiation, including Radioactive decay, nuclear radiation, consists of subatomic particles or electromagnetic waves that have enough energy per individual photon or particle to ionization, ionize atoms or molecules by detaching ...
, and as a driving force for industrial development in the field of nuclear energy applications".


The Spanish autarky

On 1 April 1939, the United States lifted the embargoes placed on Spain after the
Spanish Civil War The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
, providing limited recognition to the Spanish State, and the embassy to Spain, previously in Barcelona, now headed by a ''Chargé d'Affaires ad interim'', was moved back to Madrid on the 13th. Yet with Spain acting as all but a member of the Axis powers, there was much skepticism among the Western world as to whether or not they should be allowed to join the organs of the new
international order In international relations, international order refers to patterned or structured relationships between actors on the international level. Definition David Lake, Lisa Martin and Thomas Risse define "order" as "patterned or structured relat ...
such as the United Nations. Public opinion of the Spanish State was low. At the
San Francisco Conference The United Nations Conference on International Organization (UNCIO), commonly known as the San Francisco Conference, was a convention of delegates from 50 Allied nations that took place from 25 April 1945 to 26 June 1945 in San Francisco, Cal ...
, Spain was barred, while prominent
Spanish Republican The Spanish Republic (), commonly known as the Second Spanish Republic (), was the form of democratic government in Spain from 1931 to 1939. The Republic was proclaimed on 14 April 1931 after the deposition of King Alfonso XIII. It was dissolv ...
leaders were in attendance, exerting a notorious influence on several delegations, extended to the conditions of entry into the United Nations. As well, at the Potsdam Conference, the question of how to proceed with post-war Spain was one of the first to be dealt with. In this sense,
Stalin Joseph Vissarionovich Stalin (born Dzhugashvili; 5 March 1953) was a Soviet politician and revolutionary who led the Soviet Union from 1924 until Death and state funeral of Joseph Stalin, his death in 1953. He held power as General Secret ...
was, in a certain way, seeking revenge against the Francoist State, due in part to the fact that the State had sent the
Blue Division The 250th Infantry Division (), better known as the Blue Division (, ), was a unit of volunteers from Francoist Spain operating from 1941 to 1943 within the German Army () on the Eastern Front during World War II. It was officially designated t ...
(volunteers fighting with the German armed forces) to the Soviet Union 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 ...
, with a joint statement from the Big Three reading:


Atoms for Peace and the American connection

Yet as 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 ...
began, and with Spanish agents, US military officials, and US businessmen lobbying for the opening of relations, popular opinion shifted. The appointment of a US ambassador to Madrid was announced on 27 December 1950. In July 1951, negotiations started for an alliance which would eventually become the
Pact of Madrid The so-called Pacts of Madrid of 1953 were three "executive agreements" signed in Madrid on September 23, 1953, between the United States and Spain, then under the dictatorship of General Franco. Under these agreements, five U.S. military bases w ...
, and thus in 1955, amidst warming of relations between Spain and the United States as well as Spanish ascension to the UN, Francisco Franco and President
Dwight D. Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; October 14, 1890 – March 28, 1969) was the 34th president of the United States, serving from 1953 to 1961. During World War II, he was Supreme Commander of the Allied Expeditionar ...
signed an agreement of nuclear cooperation as part of the
Atoms for Peace "Atoms for Peace" was the title of a speech delivered by U.S. president Dwight D. Eisenhower to the UN General Assembly in New York City on December 8, 1953. The United States then launched an "Atoms for Peace" program that supplied equipment ...
initiative, opening up nuclear research to civilians and countries that had not previously possessed nuclear technology. Eisenhower, a proponent of non-proliferation, sought to stop the spread of military use of nuclear weapons. Although the nations that already had atomic weapons kept their weapons and grew their supplies, the program was designed to prevent other countries from developing similar weapons. The program also created regulations for the use of nuclear power, aiming to shape the use of nuclear power into a solely positive means. This would not necessarily work towards the desired results; in fact, it would be this very program which enabled General
Franco Franco may refer to: Name * Franco (name) * Francisco Franco (1892–1975), Spanish general and dictator of Spain from 1939 to 1975 * Franco Luambo (1938–1989), Congolese musician, the "Grand Maître" * Franco of Cologne (mid to late 13th cent ...
, accompanied by the Minister of the Presidency of the Government,
Luis Carrero Blanco Admiral-General Luis Carrero Blanco (; 4 March 1904 – 20 December 1973) was a Spanish Navy officer and politician. A long-time confidant and right-hand man of dictator Francisco Franco, Carrero served as Prime Minister of Spain. Upon gr ...
, to inaugurate the ''Juan Vigón National Nuclear Energy Center'' at its facilities in the
University City of Madrid The University City of Madrid (), also called the Campus de Moncloa, is a complex in the Moncloa-Aravaca district of Madrid, Spain, that holds buildings of two universities and several related organizations. The campus was built between 1929 and 1 ...
on December 27, 1958. Together with the 1959
Stabilization Plan The Stabilization Plan of 1959 () or the National Plan of Economic Stabilization () were a series of economic measures taken by the Spanish Government in 1959. Its main goal was the economic liberalization of the Spanish markets, marking a turni ...
and the subsequent
Spanish miracle The Spanish miracle () refers to a period of exceptionally rapid development and growth across all major areas of economic activity in Spain during the latter part of the Francoist regime, 1959 to 1974, in which GDP averaged a 6.5 percent gr ...
, Spain was able to begin shifting away from the previous
autarky Autarky is the characteristic of self-sufficiency, usually applied to societies, communities, states, and their economic systems. Autarky as an ideology or economic approach has been attempted by a range of political ideologies and movement ...
, allowing for the beginning of a fledgling civilian nuclear sector which would lay the foundations for Project Islero.


The Moroccan deterrent

In 1956, Morocco would declare independence from France under the rule of Mohammed V. Subsequently, they would demand all land under the
Greater Morocco Greater Morocco is a label historically used by some Moroccan nationalist political leaders protesting against Spanish, French and Portuguese rule, to refer to wider territories historically associated with the Moroccan sultan. Current usage ...
label, including all Spanish territories in Africa. While Spain would retrocede the
Spanish protectorate in Morocco The Spanish protectorate in Morocco was established on 27 November 1912 by a treaty between France and Spain that converted the Spanish sphere of influence in Morocco into a formal protectorate. The Spanish protectorate consisted of a norther ...
, they would keep hold of
Ceuta Ceuta (, , ; ) is an Autonomous communities of Spain#Autonomous cities, autonomous city of Spain on the North African coast. Bordered by Morocco, it lies along the boundary between the Mediterranean Sea and the Atlantic Ocean. Ceuta is one of th ...
,
Melilla Melilla (, ; ) is an autonomous city of Spain on the North African coast. It lies on the eastern side of the Cape Three Forks, bordering Morocco and facing the Mediterranean Sea. It has an area of . It was part of the Province of Málaga un ...
,
Ifni The Territory of Ifni () was a Spanish province on the Atlantic coast of Morocco, south of Agadir and across from the Canary Islands. It had a total area of , and a population of 51,517 in 1964. The main industry was fishing. The present-day Mor ...
, the
Spanish Sahara Spanish Sahara (; ), officially the Spanish Possessions in the Sahara from 1884 to 1958, then Province of the Sahara between 1958 and 1976, was the name used for the modern territory of Western Sahara when it was occupied and ruled by Spain bet ...
, and
Cape Juby Cape Juby (, trans. ''Raʾs Juby'', ) is a cape on the coast of southern Morocco, near the border with Western Sahara, directly east of the Canary Islands. Its surrounding area, including the cities of Tarfaya and Tan-Tan, is called the C ...
. This was not enough, and in 1957 Morocco would declare
war War is an armed conflict between the armed forces of states, or between governmental forces and armed groups that are organized under a certain command structure and have the capacity to sustain military operations, or between such organi ...
on Spain, bitterly asserting the young state's proclaimed sovereignty over
Spanish West Africa Spanish West Africa (, AOE) was a grouping of Spanish colonies along the Atlantic coast of northwest Africa. It was formed in 1946 by joining the southern zone (the Cape Juby Strip) of the Spanish protectorate in Morocco with the colonies of I ...
. The fighting would continue until 1958, and although under the
Treaty of Angra de Cintra The Treaty of Angra de Cintra, signed by Spain and Morocco on 1 April 1958, ended the Spanish protectorate in Morocco and helped end the Ifni War. The Spanish foreign minister, Fernando María Castiella y Maíz, and his Moroccan counterpart, Ahm ...
Spain would keep
Sidi Ifni Sidi Ifni (Berber: ''Ifni'', ⵉⴼⵏⵉ, ) is a city located on the west coast of Morocco, on the shores of the Atlantic Ocean, with a population of 20,051 people. The economic base of the city is fishing. It is located in Guelmim-Oued Noun regio ...
(until 1969 when the territory was retroceded), both
Cape Juby Cape Juby (, trans. ''Raʾs Juby'', ) is a cape on the coast of southern Morocco, near the border with Western Sahara, directly east of the Canary Islands. Its surrounding area, including the cities of Tarfaya and Tan-Tan, is called the C ...
and surrounding parts of
Ifni The Territory of Ifni () was a Spanish province on the Atlantic coast of Morocco, south of Agadir and across from the Canary Islands. It had a total area of , and a population of 51,517 in 1964. The main industry was fishing. The present-day Mor ...
itself would be lost to Morocco. From then on, the Defense High Command began to theorize the possibility of armed deterrence in the face of any further potential conflict, and in 1963, they began to put forth the idea of a Spanish atomic bomb, commissioning a secret report on the possibility of constructing it without alerting the international community.


Development


Beginnings (1963–1966)

The idea of a Spanish atomic bomb was first envisioned by
Agustín Muñoz Grandes Agustín Muñoz Grandes (27 January 1896 – 11 July 1970) was a Spanish general, and politician, vice-president of the Spanish Government and minister with Francisco Franco several times; also known as the commander of the Blue Division between ...
. A hardline
Falangist Falangism () was the political ideology of three political parties in Spain that were known as the Falange, namely first the Falange Española, the Falange Española de las Juntas de Ofensiva Nacional Sindicalista (FE de las JONS), and afterwa ...
, Muñoz Grandes aspired to break from the previous
atlanticism Atlanticism, also known as Transatlanticism or North Atlanticism, is the ideology which advocates a close alliance between nations in Northern America (the United States and Canada) and in Europe on political, economic, and defense issues. The te ...
promoted during the 50s to make the country independent of both
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
and the United States. In 1963, he approached general director of the JEN, , about preparing a Spanish foray into atomic weaponry. This new project, christened after the
bull A bull is an intact (i.e., not Castration, castrated) adult male of the species ''Bos taurus'' (cattle). More muscular and aggressive than the females of the same species (i.e. cows proper), bulls have long been an important symbol cattle in r ...
which fell the famous bullfighter
Manolete Manuel Laureano Rodríguez Sánchez (4 July 1917 – 29 August 1947), known as Manolete, was a Spanish bullfighter. Career Manuel Laureano Rodríguez Sánchez was the son of a bullfighter (who also went by the name Manolete) and his wife An ...
, would be helmed by
Spanish Air Force The Spanish Air and Space Force () is the aerial and space warfare branch of the Spanish Armed Forces. History Early stages Hot air balloons have been used with military purposes in Spain as far back as 1896. In 1905, with the help of Al ...
general , selected for possessing the scientific background and acumen necessary to conduct the project's research. Velarde was a major general and pilot in the
Spanish Air Force The Spanish Air and Space Force () is the aerial and space warfare branch of the Spanish Armed Forces. History Early stages Hot air balloons have been used with military purposes in Spain as far back as 1896. In 1905, with the help of Al ...
, as well as president of the Nuclear Fusion Institute of the
Polytechnic University of Madrid The Technical University of Madrid or sometimes called Polytechnic University of Madrid (, UPM) is a public university, located in Madrid, Spain. It was founded in 1971 as the result of merging different Technical Schools of Engineering and Arc ...
. He joined the Theoretical Physics Section of the Nuclear Energy Board, where he would remain as Director of Technology until 1981. He had studied Nuclear Energy at both
Pennsylvania State University The Pennsylvania State University (Penn State or PSU) is a Public university, public Commonwealth System of Higher Education, state-related Land-grant university, land-grant research university with campuses and facilities throughout Pennsyl ...
and the
Argonne National Laboratory Argonne National Laboratory is a Federally funded research and development centers, federally funded research and development center in Lemont, Illinois, Lemont, Illinois, United States. Founded in 1946, the laboratory is owned by the United Sta ...
of the
University of Chicago The University of Chicago (UChicago, Chicago, or UChi) is a Private university, private research university in Chicago, Illinois, United States. Its main campus is in the Hyde Park, Chicago, Hyde Park neighborhood on Chicago's South Side, Chic ...
.In 1973 he obtained the chair of Nuclear Physics at the Higher Technical School of Industrial Engineering, and in 1980 he proposed the creation of the Institute of Nuclear Fusion. The work was divided into two phases: the atomic bomb project itself, and the construction of a nuclear reactor, the fuel of which would be extracted for plutonium in order to construct the bombs. While the reactors could be built with help from the French —
General de Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
supported the idea of an atomic Spain – the matter of what material to use for the bombs themselves, as well as how to actually construct them, was one of consideration. The first results were a fiasco. The JEN specialists, all military, declared themselves incapable of knowing both the technical details for manufacturing the device and, above all, how to obtain the necessary plutonium.


Palomares incident

Their question was answered on January 17, 1966, when in what would later be known as the Palomares incident, a B-52G bomber from the United States accidentally crashed while carrying four B28FI Mod 2 Y1 thermonuclear (hydrogen) bombs, Three were found on land near the small fishing village of Palomares in the municipality of
Cuevas del Almanzora Cuevas del Almanzora is a municipality of Almería province, in the autonomous community of Andalusia, Spain. Villages * Alhanchete * Aljarilla * Barrio Bravo * Burjulú * Cala Panizo * El Calguerín (also known as Cuevas de Vera) * El C ...
,
Almería Almería (, , ) is a city and municipalities in Spain, municipality of Spain, located in Andalusia. It is the capital of the province of Almería, province of the same name. It lies in southeastern Iberian Peninsula, Iberia on the Mediterranean S ...
, Spain. The non-nuclear explosives in two of the weapons detonated upon impact with the ground, resulting in the
contamination Contamination is the presence of a constituent, impurity, or some other undesirable element that renders something unsuitable, unfit or harmful for the physical body, natural environment, workplace, etc. Types of contamination Within the scien ...
of a area with radioactive
plutonium Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four ...
. The fourth, which fell into the
Mediterranean Sea The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...
, was recovered intact after a search lasting two and a half months. The Spanish state would undergo secret research on the debris zones of the incident, with technicians led by Velarde finding remains of the bomb and the detonators in the area. In doing so, Velarde was able to rediscover the Teller-Ulam process. This enabled to the project to use
plutonium-239 Plutonium-239 ( or Pu-239) is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three main iso ...
— a boon due to its relative cheapness – and meant that the bombs constructed by Project Islero would be
thermonuclear Nuclear fusion is a reaction in which two or more atomic nuclei combine to form a larger nuclei, nuclei/neutron by-products. The difference in mass between the reactants and products is manifested as either the release or absorption of ener ...
.


Setbacks (1966–1971)

Yet later that year, Franco would hold a meeting with Velarde in which he ordered to postpone indefinitely the physical, but not theoretical, development of the project due to fears that it would be impossible to keep a secret, and with the recent creation of the
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear technology, nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was ...
(IAEA), publicity would lead to increased economic sanctions on Spain. He did, however, allow the research to go ahead, albeit detached from the Armed Forces; as well Franco pledged not to sign an international agreement being negotiated at the time to prohibit the manufacture of nuclear weapons. Thus on July 1, 1968, when almost fifty countries signed the
Treaty on the Non-Proliferation of Nuclear Weapons The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperatio ...
(NPT), Spain did not number among them. Meanwhile, Spain began to embrace the power of the atom elsewhere. In
Guadalajara Guadalajara ( ; ) is the capital and the most populous city in the western Mexican List of states of Mexico, state of Jalisco, as well as the most densely populated municipality in Jalisco. According to the 2020 census, the city has a population ...
, the construction of Spain's first nuclear power plant, the
José Cabrera Nuclear Power Station The José Cabrera Nuclear Power Station (also known as Zorita) was a nuclear power station in Almonacid de Zorita, east of Madrid, Spain. The power plant consisted of one single-loop pressurized water reactor, PWR of 160 MWe, built by Zachr ...
was underway, and JEN installed the first Spanish reactor with capacity to produce plutonium for the bombs, Coral-I, able to operate with either plutonium-239 or with 90% enriched uranium (
U-235 Uranium-235 ( or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exists in nat ...
), although with waste still containing almost as much fuel as is consumed. Nevertheless, in 1969, the first grams of Spanish plutonium – the only ones in the world not under IAEA authority – were obtained.


Resumption (1971–1977)

In 1971, at the insistence of
Manuel Díez-Alegría Manuel Díez-Alegría Gutiérrez (25 July 1906 – 3 February 1987) was a Spanish military officer who served as Chief of the Defence High Command between 1970 and 1974, i.e., chief of staff of the Spanish Armed Forces during the Francoist dic ...
, chief of the High General Staff, Velarde resumed Project Islero. The (CESEDEN) would conduct a confidential report which concluded that "Spain could successfully implement the military nuclear option." The plutonium would be produced discreetly at the
Vandellòs Nuclear Power Plant The Vandellòs Nuclear Power Plant is a nuclear power plant in Vandellòs i l'Hospitalet de l'Infant, Vandellòs located close to the Coll de Balaguer pass (Baix Camp comarca) in Catalonia, Spain. Unit one was a 508 MWe carbon dioxide gas cooled ...
, with the
Spanish Sahara Spanish Sahara (; ), officially the Spanish Possessions in the Sahara from 1884 to 1958, then Province of the Sahara between 1958 and 1976, was the name used for the modern territory of Western Sahara when it was occupied and ruled by Spain bet ...
as a planned test site. All together, the process would cost about 8.7 billion Spanish pesetas, or US$57 million. At the same time, Muñoz Grandes, and the General Director of JEN entered into negotiations with
de Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
's France to obtain a natural uranium
graphite Graphite () is a Crystallinity, crystalline allotrope (form) of the element carbon. It consists of many stacked Layered materials, layers of graphene, typically in excess of hundreds of layers. Graphite occurs naturally and is the most stable ...
and gas-fired nuclear reactor for Spain. Obtaining enough plutonium to build the bomb (6 kilos), in a country whose subsoil contained the second largest natural uranium reserves in Europe, was no longer considered a dream with the help of the French, who themselves did not allow the IAEA to inspect their plants. Both General
Charles De Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
and
Georges Pompidou Georges Jean Raymond Pompidou ( ; ; 5 July 19112 April 1974) was a French politician who served as President of France from 1969 until his death in 1974. He previously served as Prime Minister of France under President Charles de Gaulle from 19 ...
, his successor as
President of France The president of France, officially the president of the French Republic (), is the executive head of state of France, and the commander-in-chief of the French Armed Forces. As the presidency is the supreme magistracy of the country, the po ...
, were in favor of the project from the outset; the presence of an allied nuclear power on the continent was seen as a means of increasing French independence from both the United States and NATO. To this end, the ''Hispano Francesa de Energía Nuclear S.A.'' (HIFRENSA) was set up, and in 1972 the Vandellòs-I plant was inaugurated with an agreement between
Luis Carrero Blanco Admiral-General Luis Carrero Blanco (; 4 March 1904 – 20 December 1973) was a Spanish Navy officer and politician. A long-time confidant and right-hand man of dictator Francisco Franco, Carrero served as Prime Minister of Spain. Upon gr ...
and
Charles De Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
. On December 15, 1973, Velarde communicated to
Lieutenant-General Lieutenant general (Lt Gen, LTG and similar) is a military rank used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the battlefield, who was normall ...
Manuel Díez-Alegría Manuel Díez-Alegría Gutiérrez (25 July 1906 – 3 February 1987) was a Spanish military officer who served as Chief of the Defence High Command between 1970 and 1974, i.e., chief of staff of the Spanish Armed Forces during the Francoist dic ...
— who, as head of the High Command in the early 1970s, had encouraged him to pursue his investigations – and to his trusted confidant, Brigadier General
Manuel Gutiérrez Mellado Manuel Gutiérrez Mellado, 1st Marquess of Gutiérrez Mellado (30 April 1912 – 15 December 1995) was a Spanish Army officer and politician who played a relevant role during the Spanish transition to democracy. During his military career h ...
, that Spain had the capacity to manufacture three plutonium bombs a year. Díez-Alegría ordered him to put his findings in writing. However, the secrecy surrounding the Spanish nuclear program did not bode well with their American allies. Although the Spanish projects had aroused particular interest among the
CIA 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 ...
, with the ascension of Carrero Blanco to
Prime Minister of Spain The prime minister of Spain, officially president of the Government (), is the head of government of Spain. The prime minister nominates the Spanish government departments, ministers and chairs the Council of Ministers (Spain), Council of Mini ...
, this interest quickly turned to concern. Although a convinced
Anti-Communist Anti-communism is political and ideological opposition to communist beliefs, groups, and individuals. Organized anti-communism developed after the 1917 October Revolution in Russia, and it reached global dimensions during the Cold War, when th ...
, Carrero Blanco had little inclination for the United States and even less for Israel, being in favor of a better understanding with the
Arab World The Arab world ( '), formally the Arab homeland ( '), also known as the Arab nation ( '), the Arabsphere, or the Arab states, comprises a large group of countries, mainly located in West Asia and North Africa. While the majority of people in ...
. Above all else, Carrero Blanco proposed to revise relations between Spain and the United States, demanding that the two nations be treated as equals, that Spain be supplied with advanced military technology, and that the United States would enter into a commitment to defend Spain – all prerequisites for authorization to continue using military bases on Spanish territory. As well, according to some confidential reports declassified by the US Military Intelligence Service, Spain was storing plutonium to manufacture a nuclear bomb, diverting it from IAEA controls; something completely out of line for an American ally, an action on par with a
rogue state "Rogue state" (or sometimes "outlaw state") is a term applied by some international theorists to states that they consider threatening to the world's peace. These states meet certain criteria, such as being ruled by authoritarian or totalitaria ...
. The CIA informed U.S. Secretary of State,
Henry Kissinger Henry Alfred Kissinger (May 27, 1923 – November 29, 2023) was an American diplomat and political scientist who served as the 56th United States secretary of state from 1973 to 1977 and the 7th National Security Advisor (United States), natio ...
that Project Islero would soon bear fruit, and with tensions between Spain and America on the rise due to the
1973 Oil Crisis In October 1973, the Organization of Arab Petroleum Exporting Countries (OAPEC) announced that it was implementing a total oil embargo against countries that had supported Israel at any point during the 1973 Yom Kippur War, which began after Eg ...
and
Yom Kippur War The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was fought from 6 to 25 October 1973 between Israel and a coalition of Arab world, Arab states led by Egypt and S ...
, a meeting was soon called with Carrero Blanco.


Kissinger's meeting

Four days after the Velarde report, Carrero Blanco met the then Secretary of State, Henry Kissinger, and told him that the Spanish government wanted the United States to pledge its support to Spain in the event of aggression. When Kissinger refused, Carrero Blanco showed him Velarde's report, which caused the Secretary of State much distress. Kissinger, although failing to acquire Spanish adhesion to the NPT, did convey a clear message: the confirmation of Franco's desire for military nuclear devices made a "tight control" necessary over these activities. That same day, Kissinger left Madrid in a hurry, and the very next morning on December 20, 1973, Carrero Blanco would be
murdered Murder is the unlawful killing of another human without justification or valid excuse committed with the necessary intention as defined by the law in a specific jurisdiction. ("The killing of another person without justification or excu ...
. Involvement of the CIA in the attack has been suggested by certain scholars, with a potential motivation being the desire to remove Carrero Blanco and to put an end to the program.


Aftermath

Soon after, the project began to falter when
Gregorio López-Bravo Gregorio López-Bravo y Castro (29 December 1923 in Madrid, Spain – 19 February 1985 in Bilbao, Spain) was a Spanish politician who served as Ministry of Foreign Affairs (Spain), Minister of Foreign Affairs between 1969 and 1973. He also se ...
blocked its completion. The minister had spoken to
Franco Franco may refer to: Name * Franco (name) * Francisco Franco (1892–1975), Spanish general and dictator of Spain from 1939 to 1975 * Franco Luambo (1938–1989), Congolese musician, the "Grand Maître" * Franco of Cologne (mid to late 13th cent ...
to convince him to put an end to it, arguing that the Americans would eventually get wind of the project and that this would cause Spain an endless series of problems. Muñoz Grandes, already very ill at the time, failed to convince Franco of his plans to use the atomic bomb and French alliance as a way to gain greater independence from the United States, as Franco saw it as a costly operation involving a challenge to Washington, whose support he considered more important than having his own bomb or drawing closer to France. Franco put an end to the heated discussions by ordering a halt to the research and forbidding the military project to be set in motion, informing Velarde that "Spain could not support a new international blockade unleashed by the United States, and the benefits of having a small arsenal did not outweigh the damage". Yet neither Carrero Blanco's death, nor the abrupt dismissal of Díez-Alegría on June 13, 1974, nor even Franco's death on November 20, 1975, would bring the project to a halt. Carrero Blanco's successor,
Carlos Arias Navarro Carlos Arias Navarro, 1st Marquess of Arias Navarro (11 December 1908 – 27 November 1989) was the Prime Minister of Spain during the final years of the Francoist dictatorship and the beginning of the Spanish transition to democracy. Arias ...
, wanted to give a new impetus to the Islero project, and indeed, even though it was struggling to develop – not least because of continued pressure from the United States and its President
Jimmy Carter James Earl Carter Jr. (October 1, 1924December 29, 2024) was an American politician and humanitarian who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party (United States), Democratic Party ...
for Spain to sign the NPT — in 1976, the Spanish Foreign Minister,
José María de Areilza José is a predominantly Spanish and Portuguese form of the given name Joseph. While spelled alike, this name is pronounced very differently in each of the two languages: Spanish ; Portuguese (or ). In French, the name ''José'', pronounced , ...
, would declare that Spain would be able to manufacture the bomb "in seven or eight years if we set our minds to it. We do not want to be the last on the list." Even with the
Spanish transition to democracy The Spanish transition to democracy, known in Spain as (; ) or (), is a period of History of Spain, modern Spanish history encompassing the regime change that moved from the Francoist dictatorship to the consolidation of a parliamentary system ...
and arrival of President
Adolfo Suárez Adolfo Suárez González, 1st Duke of Suárez (; 25 September 1932 – 23 March 2014) was a Spanish lawyer and politician. Suárez was Spain's first democratically elected Prime Minister of Spain, prime minister since the Second Spanish Republi ...
and the Union of the Democratic Centre (UCD) in 1976, the project would continue on with internal support. Suárez, who advocated a policy of neutrality and friendship towards the Arab world to prevent problems in the
Canary Islands The Canary Islands (; ) or Canaries are an archipelago in the Atlantic Ocean and the southernmost Autonomous communities of Spain, Autonomous Community of Spain. They are located in the northwest of Africa, with the closest point to the cont ...
,
Ceuta Ceuta (, , ; ) is an Autonomous communities of Spain#Autonomous cities, autonomous city of Spain on the North African coast. Bordered by Morocco, it lies along the boundary between the Mediterranean Sea and the Atlantic Ocean. Ceuta is one of th ...
, and
Melilla Melilla (, ; ) is an autonomous city of Spain on the North African coast. It lies on the eastern side of the Cape Three Forks, bordering Morocco and facing the Mediterranean Sea. It has an area of . It was part of the Province of Málaga un ...
, supported the idea of a Spanish atomic bomb as a final deterrent against any armed aggression. Tensions with the USA increased further in 1977, when it became public knowledge of the technological capabilities of the nuclear facilities planned for the Soria Nuclear Research Center (''Centro de Investigación Nuclear de Soria'', abbreviated to CINSO) in Cubo de la Solana. American investigators were alarmed to discover that the plant designed to convert uranium into plutonium could produce 140 kilos of plutonium per year, sufficient to manufacture 23 annual bombs.


End (1977–1987)

While internally the project was well underway, externally, American pressures continued to mount; during his four-year rule, President
Jimmy Carter James Earl Carter Jr. (October 1, 1924December 29, 2024) was an American politician and humanitarian who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party (United States), Democratic Party ...
had launched a campaign against the states that had not signed the NPT. In addition, the already nervous United States became obsessed with the IAEA inspecting suspicious Spanish facilities: if this inspection was prevented, the US would freeze enriched uranium exports to Spain, which would mean the industrial halt of civilian nuclear power plants that were already operating. Thus, on February 23, 1981, the UCD-led
Calvo-Sotelo Government The government of Leopoldo Calvo-Sotelo was formed on 27 February 1981, following the latter's election as Prime Minister of Spain by the Congress of Deputies on 25 February and his swearing-in on 26 February, as a result of Adolfo Suárez's resig ...
agreed to subject the materials to inspection by the
IAEA The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 1957 ...
, the same day as the
1981 Spanish coup d'état attempt A coup d'état was attempted in Spain in February 1981 by elements of the Civil Guard and the Spanish military. The failure of the coup marked the last serious attempt to revert Spain to a Francoist government and served to consolidate Spain ...
. However, this decision did not yet mean the definitive end of Project Islero, since the UCD still continued to lightly advocate it. On the other hand, the
Spanish Socialist Workers' Party The Spanish Socialist Workers' Party ( , PSOE ) is a Social democracy, social democratic Updated as required.The PSOE is described as a social-democratic party by numerous sources: * * * * List of political parties in Spain, political party ...
(PSOE) had already resolved to abandon the Spanish nuclear project and remain in
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
, in return for Spain's integration into the
European Economic Community The European Economic Community (EEC) was a regional organisation created by the Treaty of Rome of 1957,Today the largely rewritten treaty continues in force as the ''Treaty on the functioning of the European Union'', as renamed by the Lisbo ...
(EEC), and following the 1986 Spanish NATO membership referendum and subsequent
general election A general election is an electoral process to choose most or all members of a governing body at the same time. They are distinct from By-election, by-elections, which fill individual seats that have become vacant between general elections. Gener ...
, González began to finalize the end of Project Islero. On October 13, 1987, the Spanish representative to the UN, Fernando Morán of the
PSOE The Spanish Socialist Workers' Party ( , PSOE ) is a Social democracy, social democratic Updated as required.The PSOE is described as a social-democratic party by numerous sources: * * * * List of political parties in Spain, political party ...
-led González Government, signed the NPT, bringing an official end to the project.


Legacy

Today, Spain has more than enough capacity to develop an atomic bomb in a relatively short period of time, with studies conducted in 2004 revealing that Spain has sufficient technology and resources to develop a nuclear program capable of producing several bombs a year. As well, the advances made under Project Islero have continued to manifest in Spanish life, with 7 nuclear fission reactors operating in the country, utilizing uranium deposits to produce a fifth of the energy consumed in Spain, as well as a nuclear fuel factory in Juzbado,
Salamanca Salamanca () is a Municipality of Spain, municipality and city in Spain, capital of the Province of Salamanca, province of the same name, located in the autonomous community of Castile and León. It is located in the Campo Charro comarca, in the ...
, and a low and medium activity radioactive waste storage center in El Cabril,
Córdoba Córdoba most commonly refers to: * Córdoba, Spain, a major city in southern Spain and formerly the imperial capital of Islamic Spain * Córdoba, Argentina, the second largest city in Argentina and the capital of Córdoba Province Córdoba or Cord ...
in the heart of the
Sierra Morena The Sierra Morena is one of the main systems of mountain ranges in Spain. It stretches for 450 kilometres from east to west across the south of the Iberian Peninsula, forming the southern border of the ''Meseta Central'' plateau and providi ...
.


Notes


References


Bibliography

* * * * {{Authority control Cold War Modern history of Spain 20th century in Spain 1963 in Spain Francoism Government of Francoist Spain Spanish transition to democracy Foreign relations of Francoist Spain Spain–United States relations Nuclear weapons programs Military of Francoist Spain 20th-century military history of Spain Abandoned military projects of Spain 1963 establishments in Spain 1987 disestablishments in Spain