Maritime history of England Instructions were issued in 1653 and Sailing Instructions in 1673. During the Hundred Years' War (1337–1453) the French fleet was initially stronger than that of the English, but the former was almost completely destroyed at the Battle of Sluys in 1340. Many other sea battles were fought in this period. The Spanish Armada was the Spanish fleet that sailed against England under the command of Alonso de Guzmán El Bueno, 7th Duke of Medina Sidonia in 1588. It was sent by King Philip II of Spain to take the Duke of Parma's army from the Spanish Netherlands to a landing
Spanish Armada then part of Flanders in the Spanish Netherlands, close to the border with France and the closest Spanish territory to England. Medina Sidonia tried to re-form his fleet there and was reluctant to sail further east knowing the danger from the shoals off Flanders, from which his Dutch enemies had removed the sea marks. The English had learned more of the Armada's strengths and weaknesses during the skirmishes in the English Channel and had concluded it was necessary to close within to penetrate the oak hulls of the Spanish ships. They had spent most of their gunpowder in the first