Ten Years (Eighty Years' War)

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The Ten Years (Dutch: Tien jaren) were a period in the Eighty Years' War spanning the years 1588 to 1598.^[1] In this period of ten years, stadtholder Maurice of Nassau, the future prince of Orange and son of William "the Silent" of Orange, and his cousin William Louis, Count of Nassau-Dillenburg and stadtholder of Friesland as well as the English general Francis Vere, were able to turn the tide of the war against the Spanish Empire in favour of the Dutch Republic. They achieved many victories over the Spanish Army of Flanders, conquering large swathes of land in the north and east of the Habsburg Netherlands that were incorporated into the Republic and remained part of the Netherlands into the present. Starting with the important fortification of Bergen op Zoom (1588), Maurice and William Louis subsequently took Breda (1590), Zutphen, Deventer, Delfzijl, and Nijmegen (1591), Steenwijk, Coevorden (1592) Geertruidenberg (1593), Groningen (1594), Grol, Enschede, Ootmarsum, and Oldenzaal (1597).,^[2] recovering territories lost in 1580 through the treachery of George de Lalaing. Maurice's most successful years were 1591 and 1597, in which his campaigns resulted in the capture of numerous vital fortified cities, some of which were regarded as "impregnable". His novel military tactics earned him fame amongst the courts of Europe, and the borders of the present-day Netherlands were largely defined by the campaigns of Maurice of Orange during the Ten Years.