The Siege of Algeciras commenced as Castilian forces, led by King Alfonso XI, sought to seize control from the Muslim Kingdom of Granada. Algeciras was a critical strategic port, providing access to the Mediterranean and was pivotal for trade routes. The attempt to capture the city was influenced by a desire to reclaim territory lost and to exert Castilian dominance in southern Spain. The siege featured large military contingents and tactical maneuvers, as troops attempted to surround and cut off supplies to the Granadian defenders. The besieging forces faced challenges such as fortified defenses and resource shortages. The siege would last several years, indicating the intensity of the conflict and the heightened stakes involved for both the Christian and Muslim forces. The prolonged efforts culminated in a series of battles and skirmishes, as both sides experienced fluctuations in morale and resources during the lengthy campaign. The commitment to this siege exemplified the broader struggle of the Reconquista, representing the enduring military and cultural contest between Christian and Muslim kingdoms in the region.