The end of this battle saw the losing side mistakenly open fire as a delegation from the winning side approached to receive their surrender, which resulted in the massacre of more than half of the losing side's infantry. The decisive maneuver in this battle occurred when the cavalry of the winning side cut through the infantry middle, isolating an 
The end of this battle saw the losing side mistakenly open fire as a delegation from the winning side approached to receive their surrender, which resulted in the massacre of more than half of the losing side's infantry. The decisive maneuver in this battle occurred when the cavalry of the winning side cut through the infantry middle, isolating an elite infantry corps from its German and Italian allies. A premature attack by Francois de l'Hopital nearly cost the eventual victors this battle, but eventually cavalry led by Jean de Gassion, neutralized the cavalry of the Duke of Albuquerque and took position to cut off reinforcements from General Beck. Fought northeast of Reims in a namesake forest, this battle saw 26,000 men under Don Francisco de Melo lose decisively to a French army of 22,000 commanded by the Duke d'Enghien, who would later come to be known as the Prince de Conde. A crushing defeat for tactics employing the tercio formation, for ten points, identify this 1643 battle of the Thirty Years' War which ended Spanish military preeminence in Europe.
The end of this battle saw the losing side mistakenly open fire as a delegation from the winning side approached to receive their surrender, which resulted in the massacre of more than half of the losing side's infantry.
Battle of {Rocroi}