page_title: Anglo-Spanish War (1654–1660)
section_title: Flanders
hierarchical_section_title: Anglo-Spanish War (1654–1660) / War / Flanders
caption_attribution_description: Français&#160;: Plan du siège de Dunkerque et de la bataille des Dunes avec blocus de la flotte anglaise en 1658.English: Map of Dunkirk and the Battle of the Dunes with blockade of the British fleet in 1658.
context_page_description: The Anglo-Spanish War was a conflict between the English Protectorate under Oliver Cromwell and Spain, between 1654 and 1660. It was caused by commercial rivalry. Each side attacked the other's commercial and colonial interests in various ways such as privateering and naval expeditions. In 1655, an English amphibious expedition invaded Spanish territory in the Caribbean. In 1657, England formed an alliance with France, merging the Anglo–Spanish war with the larger Franco-Spanish War resulting in major land actions that took place in the Spanish Netherlands.
  Although the war was terminated after The Restoration of King Charles II of England in 1660, tensions in the Caribbean kept the conflict going intermittently for over ten years. The war officially ended with two peace treaties which were signed at Madrid in 1667 and 1670.
context_section_description: An Anglo-French alliance against Spain was established when the Treaty of Paris was signed in March 1657. Based on the terms of the treaty, the English would join with France in her continuing war against Spain in Flanders. France would contribute an army of 20,000 men, England would contribute both 6,000 troops and the English fleet in a campaign against the Flemish coastal fortresses of Gravelines, Dunkirk and Mardyck. It was agreed that Gravelines would be ceded to France, Dunkirk and Mardyck to England. Dunkirk, in particular, was on the Commonwealth's mind mainly because of the privateers that were causing damage to the mercantile fleet. For Cromwell and the Commonwealth, the question of possession of Dunkirk thus passed from regional diplomatic possibility to urgent political necessity.
  The combined Anglo-French army for the invasion of Flanders was commanded by the great French Marshal Turenne. The Spanish Army of Flanders was commanded by Don Juan-José, an illegitimate son of the Spanish King Philip. The Spanish army of 15,000 troops was augmented by a force of 3,000 English Royalists—formed as the nucleus of potential army for the invasion of England by Charles II, with Charles's brother James, Duke of York, among its commanders.
  The Commonwealth fleet blockaded Flemish ports but, to Cromwell's annoyance, the military campaign started late in the year and was subject to many delays. Marshal Turenne spent the summer of 1657 campaigning against the Spanish in Luxembourg and made no move to attack Flanders until September. Mardyck was captured on 22 September and garrisoned by Commonwealth troops. Dunkirk was besieged in May 1658. A Spanish relief force attempted to lift the siege but was defeated on 4 June at the Battle of the Dunes. The Commonwealth contingent in Turenne's army fought with distinction and impressed their French allies with a successful assault up a strongly defended sandhill 150 feet high during the battle. When Dunkirk surrendered to Turenne on 14 June, Cardinal Mazarin honoured the terms of the treaty with Cromwell and handed the port over to the Commonwealth, despite the protests of Louis XIV. The Commonwealth also honoured its obligations in respecting the rights of the Catholic populations of Mardyck and Dunkirk. A contingent of Commonwealth troops remained with Turenne's army and were instrumental in the capture of Gravelines and other Flemish towns by the French. With the privateering threat of Dunkirk out of the way, England's mercantile fleet suffered far fewer losses; not only because the Dunkirkers had lost their largest base but also because English trade had already been largely lost to the Dutch.
caption: Map showing the siege of Dunkirk and the Battle of the Dunes in 1658. Also present are the blockading British fleet
exif: {}