The Spanish Armada (Spanish: Grande y Felicísima Armada, "Great and Most Fortunate Navy") was the Spanish fleet that sailed against England under the command of the Duke of Medina Sidonia in 1588, with the intention of overthrowing Elizabeth I of England to stop English involvement in the Spanish Netherlands and English privateering in the Atlantic. The fleet's mission was to sail to the Gravelines in Flanders and transport an army under the Duke of Parma across the Channel to England. The mission eventually failed due to early English attacks on the Armada, especially during the Battle of Gravelines, strategic errors by the Duke of Medina Sidonia, and bad weather. The campaign formed part of a nearly twenty-year-long Anglo-Spanish War.