Hindenburg commanded German forces during the August 1914 battle; its comprehensive victory - it was perhaps the German Army's greatest success of the war - ultimately brought Hindenburg an appointment as German Army Chief of Staff in 1916, replacing Erich von Falkenhayn. Also operating at Tannenberg with Hindenburg was Paul von Ludendorff, who similarly moved to Berlin with Hindenburg's promotion in 1916.
Click here to read Russian commander Vasily Gurko's own view of the action at Tannenberg.
A Summary of the Battle of Tannenberg by General Paul von Hindenburg
In the pocket-book of a dead Russian officer a note had been found which revealed the intention of the enemy Command.
It told us that Rennenkampf's Army was to pass the Masurian Lakes on the north and advance against the Insterburg-Angerburg line. It was to attack the German forces presumed to be behind the Angerapp while the Narew Army was to cross the Lotzen-Ortelsburg line to take the Germans in flank.