Francisco Franco in the context of "Brigadier general"

The Spanish Civil War (Spanish: guerra civil española) was fought from 1936 to 1939 between the Republicans and the Nationalists. Republicans were loyal to the left-leaning Popular Front government of the Second Spanish Republic and included socialists, anarchists, communists, and separatists. The opposing Nationalists who established the Spanish State were an alliance of fascist Falangists, monarchists, conservatives, and traditionalists supported by Nazi Germany and Fascist Italy and led by a military junta among whom General Francisco Franco quickly achieved a preponderant role. Due to the international political climate at the time, the war was variously viewed as class struggle, a religious struggle, or a struggle between dictatorship and republican democracy, between revolution and counterrevolution, or between fascism and communism. The Nationalists won the war, which ended in early 1939, and ruled Spain until Franco's death in November 1975.

The war began after the partial failure of the coup d'état of July 1936 against the Popular Front government by a group of generals of the Spanish Republican Armed Forces. The Nationalist faction consisted of right-wing groups, including Christian traditionalist party CEDA, monarchists, including both the opposing Alfonsists and the religious conservative Carlists, and the Falange Española de las JONS, a fascist political party. However, rebelling units in almost all important cities did not gain control, leaving Spain militarily and politically divided. The rebellion was countered with the help of arming left-wing social movements and parties and formation of militias, what led to rapid socioeconomic and political transformation in the Republican zone, referred to as the Spanish Revolution. The Nationalist forces received munitions, soldiers, and air support from Fascist Italy and Nazi Germany while the Republican side received support from the Soviet Union and Mexico. Other countries, such as the United Kingdom, France, and the United States, continued to recognise the Republican government but followed an official policy of non-intervention. Despite this policy, tens of thousands of citizens from non-interventionist countries directly participated in the conflict, mostly in the pro-Republican International Brigades.

The Madrid Accords, formally the Declaration of Principles on Western Sahara, was a treaty between Spain, Morocco, and Mauritania setting out six principles which would end the Spanish presence in the territory of Spanish Sahara and arrange a temporary administration in the area pending a referendum.

The territory had been a Spanish province and former colony. The agreement was signed in Madrid on November 14, 1975, six days before Francisco Franco died, although it was never published on the Boletin Oficial del Estado. This agreement conflicted with the Law on decolonization of Sahara, ratified by the Spanish Parliament (Cortes) on November 18.Under the Madrid agreement, the territory would then be divided between Morocco and Mauritania, with no role for either the Polisario Front or the Sahrawi people generally. Following the accords, the Polisario relocated from the Mauritanian border to Algeria.

A caudillo (/kɔːˈdiː(l)joʊ, kaʊˈ-/ kaw-DEE(L)-yoh, kow-, Spanish: [kawˈðiʎo]; Old Spanish: cabdillo, from Latin capitellum, diminutive of caput "head") is a type of personalist leader wielding military and political power. There is no precise English translation for the term, though it is often used interchangeably with "military dictator," "warlord" and "strongman". The term is historically associated with Spain and Hispanic America, after virtually all of the regions in the latter won independence in the early nineteenth century.

The roots of caudillismo may be tied to the framework of rule in medieval and early modern Spain during the Reconquista from the Moors. Spanish conquistadors such as Hernán Cortés and Francisco Pizarro exhibit characteristics of the caudillo, being successful military leaders, having mutual reliance on the leader and their supporters, and rewarding them for their loyalty. An important characteristic of the caudillo is their charisma, which drew in followers who could be utilized to change the political climate and shape state-formation in the post colonial era. The followers of caudillos, called gauchos, were common people whom the caudillos could charm and persuade into joining their cause. Often the caudillo would take on the role of the provider as a substitute for the shortcomings of those in the government. It created a type of father-child bond between the caudillo and gaucho that strengthened loyalties and made the caudillos powerful. However, the paternalist view towards the relationship between the caudillo and the gaucho assumes that the caudillo has all of the power in the relationship and ignores that much of that power comes from the gaucho's decision to follow a particular caudillo.

The Spanish Constitution (Spanish: Constitución Española) is the supreme law of the Kingdom of Spain. It was enacted after its approval in 1978 in a constitutional referendum; it represents the culmination of the Spanish transition to democracy.

The current version was approved in 1978, three years after the death of dictator Francisco Franco. There have been dozens of constitutions and constitution-like documents in Spain; however, it is "the first which was not imposed by a party but represented a negotiated compromise among all the major parties". It was sanctioned by King Juan Carlos I on 27 December, before it was published in the Boletín Oficial del Estado (the government gazette of Spain) on 29 December, the date on which it became effective.

Duce (/ˈduːtʃeɪ/ DOO-chay, Italian: [ˈduːtʃe]) is an Italian title, derived from the Latin word dux, 'leader', and a cognate of duke. National Fascist Party leader Benito Mussolini was identified by Fascists as Il Duce ('The Leader') of the movement since the birth of the Fasci Italiani di Combattimento in 1919. In 1925 it became a reference to the dictatorial position of Sua Eccellenza Benito Mussolini, Capo del Governo, Duce del Fascismo e Fondatore dell'Impero ('His Excellency Benito Mussolini, Head of Government, Leader of Fascism and Founder of the Empire'). Mussolini held this title together with that of President of the Council of Ministers: this was the constitutional position which entitled him to rule Italy on behalf of the king of Italy. Founder of the Empire was added for the exclusive use by Mussolini in recognition of his founding of an official legal entity of the Italian Empire on behalf of the king in 1936 following Italy's victory in the Second Italo-Ethiopian War. The position was held by Mussolini until 1943, when he was removed from office by the king and the position of Duce was discontinued, while Marshal Pietro Badoglio was appointed Presidente del Consiglio.

This position was the model which other fascist leaders adopted, such as the position of Führer by Adolf Hitler and Caudillo by Francisco Franco. In September 1943, Mussolini styled himself as the "Duce of the Italian Social Republic" (Italian: Duce della Repubblica Sociale Italiana), and held the position until the collapse of the Italian Social Republic and his execution in April 1945.

Francoist Spain (Spanish: España franquista; English: pronounced Franco-ist), also known as the Francoist dictatorship (dictadura franquista), or Nationalist Spain (España nacionalista), and Falangist Spain (España falangista), was the period of Spanish history between 1936 and 1975, when Francisco Franco ruled Spain after the Spanish Civil War with the title Caudillo. After his death in 1975, Spain transitioned into a democracy. During Franco's rule, Spain was officially known as the Spanish State (Estado Español). The informal term "Fascist Spain" is also used, especially before and during World War II.

During its existence, the nature of the regime evolved and changed. Months after the start of the Civil War in July 1936, Franco emerged as the dominant rebel military leader and he was proclaimed head of state on 1 October 1936, ruling over the territory which was controlled by the Nationalist faction. In 1937, Franco became an uncontested dictator and issued the Unification Decree which merged all of the parties which supported the rebel side, turning Nationalist Spain into a one-party state under the FET y de las JONS. The Spanish Natioanlists received crucial support from Nazi Germany, Fascist Italy and Estado Novo Portugal, allowing them to win the civil war over the Spanish Republicans. The end of the Civil War in 1939 brought the extension of the Franco rule to the whole country and the exile of Republican institutions. The Francoist dictatorship originally took a form described as, "fascist or quasi-fascist", "fascistized", "para-fascist", "semi-fascist", or a strictly fascist regime, showing clear influence of fascism in fields such as labor relations, the autarkic economic policy, aesthetics, the single-party system, and totalitarian control of public and private life. As time went on, the regime opened up and became closer to developmental dictatorships and abandoned the radical fascist ideology of Falangism, although it always preserved residual fascist trappings and a "major radical fascist ingredient."

The Spanish coup of July 1936 was a military uprising that was intended to overthrow the Spanish Second Republic, but precipitated the Spanish Civil War, in which Nationalists fought against Republicans for control of Spain. The coup was organized for 18 July 1936, although it started the previous day in Spanish Morocco. Instead of resulting in a prompt transfer of power, the coup split control of the Spanish military and territory roughly in half. The resulting civil war ultimately led to the establishment of a fascist regime under Francisco Franco, who became ruler of Spain as caudillo.

The rising was intended to be swift, but the government retained control of most of the country including Málaga, Jaén and Almería. Cádiz was taken by the rebels, and General Gonzalo Queipo de Llano managed to secure Seville. In Madrid, the rebels were hemmed into the Montaña barracks, which fell with much bloodshed. On 19 July, the cabinet, headed by the newly appointed prime minister José Giral, ordered the distribution of weapons to the unions. With the defeat of the rebels in Madrid, Barcelona, and Valencia, anarchists took control of large parts of Aragon and Catalonia. The rebel General Goded surrendered in Barcelona and was later sentenced to death and executed. The rebels secured the support of around half of the Spanish Army, which totalled about 66,000 men, including large numbers who were on leave, as well as the 30,000-strong army of Africa. The army of Africa was Spain's most professional and capable military force. The government retained less than half the supply of rifles, heavy and light machine guns, and artillery pieces. Both sides had few tanks and outdated aircraft, while naval capacity was reasonably even. The defection of many regular officers weakened Republican units of all types.

The Spanish Republic (Spanish: República Española), commonly known as the Second Spanish Republic (Spanish: Segunda República Española), was the democratic government of Spain from 1931 to 1939. The Republic was proclaimed on 14 April 1931 after the deposition of King Alfonso XIII. It was dissolved on 1 April 1939 after surrendering in the Spanish Civil War to the Nationalists led by General Francisco Franco.

After the proclamation of the Republic, a provisional government was established until December 1931, at which time the 1931 Constitution was approved. Over the next two years of constitutional government, known as the Reformist Biennium, Prime Minister Manuel Azaña initiated numerous reforms. In 1932, religious orders were forbidden control of schools, while the government began a large-scale school-building project. A moderate agrarian reform was carried out. Home rule was granted to Catalonia, with a parliament and a president of its own.

The Nationalist faction (Spanish: Bando nacional), also called the Rebel faction (Spanish: Bando sublevado) and Francoist faction (Spanish: Bando franquista), was a major faction in the Spanish Civil War of 1936 to 1939. It was composed of a variety of right-leaning political groups that supported the Spanish Coup of July 1936 against the Second Spanish Republic and Republican faction and sought to depose Manuel Azaña, including the Falange, the CEDA, and two rival monarchist claimants: the Alfonsist Renovación Española and the Carlist Traditionalist Communion. In 1937, all the groups were merged into the FET y de las JONS. After the death of the faction's early leaders, General Francisco Franco, one of the members of the 1936 coup, headed the Nationalists throughout most of the war, and emerged as the dictator of Spain until his death in 1975.

The term Nationalists or Nationals (nacionales) was coined by Joseph Goebbels following the visit of the clandestine Spanish delegation led by Captain Francisco Arranz requesting war materiel on 24 July 1936, in order to give a cloak of legitimacy to Nazi Germany's help to the Spanish rebel military. The leaders of the rebel faction, who had already been denominated as 'Crusaders' by Bishop of Salamanca Enrique Pla y Deniel – and also used the term Cruzada for their campaign – immediately took a liking to it.

Falangism (Spanish: Falangismo) 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 afterward the Falange Española Tradicionalista y de las Juntas de Ofensiva Nacional Sindicalista (FET y de las JONS). Falangism combined Spanish nationalism, authoritarianism, Catholic traditionalism, anti-capitalism, and anti-communism, along with a call for national syndicalism. Historian Stanley G. Payne, a scholar on fascism, considers the Falange to have been a fascist movement, though he also recognizes the nuances, faults, and controversies of calling Falangism a fascist movement. Another interpretation is that the Falange from 1937 onward during Franco's leadership was a compromise between radical fascism and authoritarian conservatism.

The FE de las JONS merged with the Traditionalist Communion and several other parties in 1937 following the Unification Decree of Francisco Franco, to form FET y de las JONS. This new Falange was meant to incorporate all Nationalist political factions and became the sole political party of Francoist Spain. The merger was opposed by some of the original Falangists, such as Manuel Hedilla.