During the
Eighty Years' War he directed Dutch fleets in various naval battles. In 1605, he
destroyed a part of the Spanish convoy in the
Dover Strait. In 1606, he was defeated at the
Battle of Cape St. Vincent by Spanish Admiral
Luis Fajardo. In 1621, he was also defeated by the Spanish in the
Battle of Gibraltar. In 1622 he fought
Dunkirkers on the coast of Scotland, and fought in the
Dutch–Barbary war. He led a Dutch fleet of 20 warships, supplied under the terms of the 1624 Franco-Dutch treaty, into the
Siege of Saint-Martin-de-Ré against a
Huguenot uprising. His fleet would be removed from French service in February 1626 after a resolution of the
States-General in December 1625. ==Notes==