Cape Juby in the context of "Tarfaya"

Spanish Sahara (Spanish: Sáhara Español; Arabic: الصحراء الإسبانية, romanized: aṣ-Ṣaḥrā' al-Isbānīyah), 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 between 1884 and 1976. It had been one of the most recent acquisitions as well as one of the last remaining holdings of the Spanish Empire, which had once extended from the Americas to the Spanish East Indies.

Between 1946 and 1958, the Spanish Sahara was amalgamated with the nearby Spanish-protected Cape Juby and Spanish Ifni to form a new colony, Spanish West Africa. This was reversed during the Ifni War when Ifni and the Sahara became provinces of Spain separately, two days apart, while Cape Juby was ceded to Morocco in the peace deal.

Spanish West Africa (Spanish: África Occidental Española, 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 Ifni, Saguia el-Hamra and Río de Oro into a single administrative unit. Following the Ifni War (1957–58), Spain ceded the Cape Juby Strip to Morocco by the Treaty of Angra de Cintra, and created separate provinces for Ifni and the Sahara in 1958.

Spanish West Africa was formed by a decree of 20 July 1946. The new governor sat at Ifni. He was ex officio the delegate of the Spanish high commissioner in Morocco in the southern zone of the protectorate, to facilitate its government along the same lines as the other Spanish possessions on the coast. On 12 July 1947, Ifni and the Sahara were raised into distinct entities, but still under the authority of the governor in Ifni. On 10 and 14 January 1958, respectively, the Sahara and Ifni were raised into regular Spanish overseas provinces completely independent of one another.

The Draa (Arabic: وادي درعة, romanized: wādī dar'a; also spelled Dra or Drâa, in older sources mostly Darha or Dara) is Morocco's longest river, at 1,100 kilometres (680 mi). It is formed by the confluence of the Dadès River and Imini River. It flows from the High Atlas mountains, initially south-eastward to Tagounite, and from Tagounite mostly westwards to its mouth in the Atlantic Ocean somewhat north of Tan-Tan. In 1971, the (El) Mansour Eddahabi dam was constructed to service the regional capital of Ouarzazate and to regulate the flow of the Draa. Most of the year the part of the Draa after Tagounite falls dry.

In the first half of the 20th century, the lowest course of the Draa marked the boundary between the French protectorate of Morocco and the area under Spanish rule.

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 northern strip on the Mediterranean and the Strait of Gibraltar, and a southern part of the protectorate around Cape Juby, bordering the Spanish Sahara. The northern zone became part of independent Morocco on 7 April 1956, shortly after France relinquished its protectorate. Spain finally ceded its southern zone through the Treaty of Angra de Cintra on 1 April 1958, after the short Ifni War. The city of Tangier was excluded from the Spanish protectorate and received a special internationally controlled status as Tangier International Zone.

The Army of Africa (Spanish: Ejército de África, Arabic: الجيش الإسباني في أفريقيا, romanized: Al-Jaysh al-Isbānī fī Afriqā, Riffian; Aserdas n Tefriqt), also known as the Army of Spanish Morocco (Spanish: Cuerpo de Ejército Marroquí'), was a field army of the Spanish Army that garrisoned the Spanish protectorate in Morocco from 1912 until Morocco's independence in 1956.

At the start of the 20th century, the Spanish Empire's colonial possessions in Africa comprised Morocco, Spanish Sahara, Ifni, Cape Juby and Spanish Guinea.

The Treaty between France and Spain regarding Morocco was signed on 27 November 1912 by French and Spanish heads of state, establishing de jure a Spanish Zone of influence in northern and southern Morocco, both zones being de facto under Spanish control, while France was still regarded as the protecting power as it was the sole occupying power to sign the Treaty of Fes.

The northern part was to become the zone of the Spanish protectorate in Morocco with its capital in Tetuan, while the southern part was ruled from El Aiun as a buffer zone between the Spanish Colony of Rio de Oro and French Morocco.