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Battle of Kolin
Part of the Seven Years' War
Date June 18, 1757 Location Kolin, Czech Republic Result Austrian victory
Combatants
Prussia	Austria
Commanders
Frederick the Great	Leopold Josef, Count von Daun
Strength
32,000	44,000
Casualties
14,000 dead or wounded	9,000 dead or wounded

Seven Years' War: European theatre
Minorca – Lobositz – Reichenberg – Prague – Kolin – Hastenbeck – Gross-Jägersdorf – Moys – Rossbach – Breslau – Leuthen – Krefeld – Domstadtl – Zorndorf – Tornow – Hochkirch – Bergen – Kay – Minden – Kunersdorf – Hoyerswerda – Maxen – Meissen – Landshut – Warburg – Liegnitz – Kloster Kampen – Torgau – Villinghausen – Kolberg – Burkersdorf – Lutterberg – Freiberg

The Battle of Kolin (Kolín) was a battle fought on June 18, 1757 during the Seven Years' War. A Prussian army of 32,000 men fought an Austrian army under Daun of 44,000 men. The Prussians lost the battle and nearly 14,000 men, the Austrians lost 9,000 men.

Frederick II had won a battle against Austria and was now besieging Prague. Marshal Daun had been too late to participate in the battle of Prague, but picked up 16,000 men who had escaped from the battle. With this army he slowly moved to relieve Prague and the Prussian forces had to be split.

Frederick took 32,000 of his men to intercept Daun. Knowing that the Prussian forces were too weak to both besiege Prague and keep Daun away from Prague for a longer time (or to fight the Austrian army reinforced by the Prague garrison), the Austrians took defensive positions on hills near Kolín. Frederick was forced to attack the Austrians. Reports of the Austrian strengths are mixed: some report 44,000 men, some reports mention 65,000 men. The battlefield of Kolin consisted of gently rolling hill slopes.

Frederick's plan was to envelop the Austrian right wing with most of his army. Along the Austrian lines (Prussian right wing and center) he kept only enough troops to hide the concentration on the Prussian left wing. The Prussian main force was to turn right toward the Austrians to attack their right flank. The Prussian left wing would locally outnumber the Austrians. After the Austrian right wing had been defeated the battle would be decided.

Frederick's main force turned toward the Austrians too early and attacked their defensive positions frontally instead of outflanking them. Austrian light infantry (Croats) seem to have played an important role in this; harassing the regular Prussian infantry under Generals von Manstein and Tresckow, they provoked them into a premature attack.

Now the disunited Prussian columns all blundered into a series of uncoordinated attacks, each against superior numbers. By the afternoon, after about five hours of fighting, the Prussians were disoriented and Daun's troops were driving them back.

Prussian cuirassiers under Oberst von Seydlitz (promoted to major-general on that day) finally showed up. The Krzeczor Hill was the location of numerous charges and countercharges. The first Guard battalion under General von Tauentzien saved the Prussian army from a worse fate, covering the Prussian retreat.

The battle was Frederick's first defeat in this war. This disaster forced him to abandon his intended march on Wien, and entailed raising the siege of Prague, and the Prussians fell back on Leitmeritz. The Austrians, reinforced by the 48,000 troops in Prague, followed them, 100,000 strong, and, falling on Prince August Wilhelm of Prussia, who was retreating eccentrically (for commissariat reasons) on Zittau, inflicted a severe check upon him. The king was compelled to abandon Bohemia.

Frederick blamed his defeat on his generals, such as Prince Moritz von Anhalt-Dessau. The truth is more subtle. The greatest blame must be laid in Frederick himself. He opted for an assault against a numerically superior opponent. He chose a risky strategy for the battle. An often underestimated factor in the battle was the tenacious and skillful defense organized by the Austrian marshal Daun. In other battles Fredrick opted for the same flanking strategy, and won brilliant victories. The Austrian army under Daun not only withstood the Prussian assaults but also selected the correct momentum for a careful counter-attack.