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 Empire support to the Protestant causes in the Netherlands and France, and Sir Francis Drake launched attacks against Spanish merchants in the Caribbean and the Pacific, along with a particularly aggressive attack on the port of Cadiz. Portugal was brought into Spain's conflicts with rivals. In 1588, hoping to put a stop to Elizabeth's intervention, Philip sent the Spanish Armada to invade England. Unfavorable weather, plus heavily armed and manœuvrable English ships, and the fact that the English had been warned by their spies in the Netherlands and were ready for the attack resulted in a defeat for the Armada. However,