Castile–Granada Frontier War

Timeline

1. 1450–1454Andalusian frontier · AndalusiaIn the late reign of John II and the early reign of Henry IV, Granadan cavalry frequently raided Castilian towns and farmland across the border, while garrisons at Castilian frontier fortresses such as Écija and Antequera launched counterattacks. Seasonal campaigns and defensive raids were the main forms of warfare.
2. 1455–1459Frontier of the Kingdom of Granada · GranadaHenry IV organized larger military operations against Granadan frontier towns but, constrained by royal finances and noble infighting, failed to achieve a decisive breakthrough. Granada's Emir Yusuf V held the line with Marinid reinforcements and difficult terrain, and the two sides ultimately maintained a fragile peace through truces and tribute exchanges.