The Prussian ambassador in Paris delivers the declaration of war on France.
The Bavarian government announces its neutrality.
British forces attack an American force five times their size at Stoney Creek, Upper Canada (Ontario), inflict casualties and retreat. The US invasion force is required to withdraw.
Prussian troops oust the French from Großbeeren, just south of Berlin.
French troops pursuing the Prussians over the River Katzbach (Kaczawa) are turned upon by their prey and are badly defeated.
French troops attempting to force their way to San Sebastián are stopped by Spanish and British at the heights of San Marcial near Irun. The French retreat across the border into France.
Napoléon enters Leipzig at the head of 200,000 men.
Russian forces occupy East Frisia, Knyphausen and Jever.
Austria takes control of Venetia.
British forces occupy Lucca.