The Battle of Tannenberg, also known as the Second Battle of Tannenberg, was fought between Russia and
The … See more

Germany entered World War I largely following the Schlieffen Plan. According to Prit Buttar, "In combination with his own strong desire to fight an offensive war featuring outflanking and encircling movements… See more

Rennenkampf's First Army crossed the frontier on 17 August, moving westward slowly. This was sooner than the Germans anticipated, because the Russian mobilization, including the Baltic and Warsaw dis… See more

The new commanders arrived at Marienburg on the afternoon of 23 August; they had met for the first time on their special train the previous night and now they rendezvoused with the Eighth Army staff. I Corp… See more

To David Stevenson it was "a major victory but far from decisive", because the Russian First Army was still in East Prussia. It set the stage for the First Battle of the Masurian Lakes a week later, when the reinforced German Ei… See more

Russian casualties as a result of the battle are often discussed among historians; in his memoirs, Hindenburg named the number of Russian prisoners at 92,000 people. This is also confirmed by the Reichsarch… See more