Staff of the commander in chief of the Russian Narew army 1914
First World War: staff of the commander in chief of the Russian Narew Army, General Aleksandr Vassilievich Samsonov, during the planning of an attack on the German positions, just before the Battle of Tannenberg. From left to right Colonel Wjalow, commander of the staff of operations, Quartermaster General Filimonov and chief of the intelligence service and reconnaissance, Colonel Lebedev.