Order of battle at Tannenberg (1914)
This is the order of battle for both the Russian and German armies at the Battle of Tannenberg, August 17 to September 2, 1914. Russian Northwestern Front. General Yakov Zhilinsky, Front Commander (not present) Maj. Gen. Sir Alfred Knox, British Military Attache (attached to 2nd Army) First Army. General Paul von Rennenkampf, Commander Lt. Gen. Mileant, Chief of Staff II Corps (transferred from the Second Army, 22 August) – General Sergei Scheidemann 26th Infantry Division 43rd Infantry Division III Corps – General Nikolai Epanchin 25th Infantry Division 27th Infantry Division IV Corps – General Aliew 30th Infantry  Division 40th Infantry Division XX Corps – General Vladimir Vasilyevich Smirnov 28th Infantry Division 29th Infantry Division Unattached 56th Infantry Division 5th Rifle Brigade 1st Guard Cavalry Division – Lt. Gen. Kasnakow 2nd Guard Cavalry Division – Lt. Gen. Georgy Ottonovich Rauch 1st Cavalry Division– Lt. Gen. Romeiko-Gurko 2nd Cavalry Division – Lt. Gen. Huseyn Khan Nakhchivanski 3rd Cavalry Division – Lt. Gen. Belgard 1st Independent Cavalry Brigade 1st Heavy Artillery Brigade Second Army. General Alexander Samsonov, Commander Maj. Gen. Postowski, Chief of Staff I Corps – General Artamanov, relieved on August 28 – Lt. Gen Alexander Alexandrovich Dushkevich 22nd Infantry Division 24th Infantry Division VI  Corps – General Blagowjeschtschenski 4th Infantry Division 16th Infantry Division XIII Corps – Lt. Gen. Nikolai Klyuev 1st Infantry Division 36th Infantry Division XV Corps – General Martos 6th Infantry Division 8th Infantry Division XXIII Corps – General Kyprian Kandratovich 3rd Guard Infantry Division 2nd Infantry Division Unattached 1st Rifle Brigade 4th Cavalry Division – Lt. Gen. Tolpygo 6th Cavalry Division – Lt. Gen. Roop 15th Cavalry Division – Lt. Gen. Ljudomirow 2nd Heavy Artillery Brigade German Eighth Army. Colonel General Maximilian von Prittwitz, Commander, replaced on August 23 Colonel General Paul von Hindenburg, Commander Maj. Gen. Erich Ludendorff, Chief of Staff Maj. Gen. Paul Grünert, Quartermaster  General Maj. Gen. Otto Kersten, Chief Engineer Lt. Col. Max Hoffmann, Chief of Operations I Army Corps – General Hermann von François Col. Walter Schmidt von Schmidtseck, Chief of Staff 1st Infantry Division – Lt. Gen. Richard von Conta 2nd Infantry Division – Lt. Gen. Adalbert von Falk XVII Army Corps – General August von Mackensen 35th Infantry Division – Lt. Gen. Otto Hennig 36th Infantry Division – Lt. Gen. Konstanz von Heineccius XX Army Corps – General Friedrich von Scholtz 37th Infantry Division – Lt. Gen. Hermann von Staabs 41st Infantry Division – Maj. Gen. Leo Sontag I Reserve Corps – Lt. Gen. Otto von Below 1st Reserve Division  – Lt. Gen. Sigismund von Förster 3rd Reserve Division – Lt. Gen. Curt von Morgen 36th Reserve Division – Maj. Gen. Kurt Kruge Höheres Landwehr Kommando No. 1 / 1st Landwehr Division – Lt. Gen. Georg Freiherr von der Goltz 1st Cavalry Division – Lt. Gen. Hermann Brecht Other units in the field Reinforcements "From the Western Front"