For many years, trouble had been brewing with Castile—a Spanish kingdom whose navy had taken to raiding English merchant ships in the Channel. Edward won a major naval victory against a Castilian fleet off Winchelsea in 1350. Although the Castilian crossbowmen killed many of the enemy, the English gradually got the better of the encounter. In spite of Edward's success, however, Winchelsea was only a flash in a conflict that raged between the English and the Spanish for over 200 years, coming to a head with the defeat of the Spanish Armada in 1588.