Campaign Battles of Luckenwalde and Petkus

On 11 February 1807 the French left wing, facing the Prussians, saw an opportunity to monster the exposed extreme right of the Prussian line.  From the French perspective the situation looked like this:

That the Russians were at last in-theatre had been confirmed by scouts, but it was hoped that a quick strike on a limited field would defeat the Prussians before substantial help could arrive.