The Germans are attacking from the Masurian Lakes region of East Prussia. They have put the Russians to flight and are now hoping to turn the enemy’s flank and force their surrender. But events are beginning to frustrate German ambitions. Not all the Russian formations have broken: the XX Corps under General Pavel Bulgakov is still holding together. They take up a strong defensive position in the Augustow Forest, resolving to buy time for the rest of the Russian army to escape the Russian trap.
image source (The Great War Blog)