[5] It occurred during a heavy thunderstorm at the Katzbach river between Wahlstatt and Liegnitz in the Prussian province of Silesia.

[6] Taking place the same day as the Battle of Dresden, it resulted in a Coalition victory, with the French retreating to Saxony.

[8] The French resistance grew in intensity, the Allied night marches multiplied owing to constant combat and delays, and the weather turned atrocious.

[8] For the next five days, the Silesian Army engaged in a series of fierce and costly rearguard actions against the pursuing French forces, which were personally commanded by Napoleon.

[10] The Landwehr militiamen deserted en masse in entire battalions, while the Allied corps commanders complained of the ruin befalling their army thanks to the incompetence of its general staff.

[12] That same day, he formed the 100,000-strong Army of the Bober under Marshal Jacques MacDonald's and ordered him to drive Blucher to east of the Katzbach then pull back to the west bank of the Bober and assume defensive positions to protect the flank of the French armies in Saxony and near Berlin.

[15] At 11 pm on 25 August, MacDonald issued orders to move his army to the town of Jauer the next day and defeat Blücher or drive him deeper into Silesia.

[21] MacDonald's casualties on 26 August are unknown but by 1 September he had lost 30,000 men and 103 guns, including 12,000 killed and wounded and 18,000 captured.

[19] This, coupled with the defeats at Kulm, four days later, and Dennewitz on 6 September, would more than negate Napoleon's victory at Dresden.