Battle of the Slaak

Battle of the Slaak
Part of the Eighty Years' War

Battle at the Slaak, 12 and 13 September 1631
Date12 and 13 September 1631
Location
Slaak of Volkerak channel near Goeree-Overflakkee (present-day the Netherlands)
51°37′52″N 4°12′01″E / 51.6312°N 4.2004°E / 51.6312; 4.2004
Result Dutch victory
Belligerents
Spain Spain  United Provinces
Commanders and leaders
Spain Don Marquis of Aytona
Spain Count Jan van Nassau Siegen
Dutch Republic Vice-Admiral Marinus Hollare
Strength
5,500 soldiers,
35 ships,
60 vessels
50 vessels
Casualties and losses
83 vessels sunk, destroyed or captured,
1,500 killed, wounded or drowned,
4,000 prisoners
Light

The naval Battle of the Slaak (12 and 13 September 1631) was a Dutch victory during the Eighty Years' War. The Dutch prevented the Spanish army from dividing the Dutch United Provinces in two.