The Battle of Tannenburg was an engagement between the Russian Second Army and the German Eighth Army during World War I, in August of 1914. The battle resulted in a rout of the Germans by the Second Army, which continued advancing further into the German Empire. Heavy casualties were taken by Germany as well, with minimal losses on the Russian side. The victory was heavily propagandized due to the Battle of Tannenburg of the medieval times, in which Slavs defeated the Teutonic Knights. A slogan came into use in the Russian Army afterwards, "And this time, we'll also take Berlin!"