Title: Drama v Vostochnoĭ Prussii
Subjects: History, World War, 1914-1918, Campaigns, Russia. Armii͡a, Russia, Russia. Armii͡a. Pervai͡a Armii͡a, Weltkrieg, Russia. Armii︠a︡. Armii︠a︡, 1-i︠a︡
Places: Eastern Front, Prussia, East (Poland and Russia)
People: Pavel Karlovich Rennenkampf (1854-1918)
Time periods: World War, 1914-1918