Order of battle at Tannenberg (1914)

Russian Northwestern Front

General Shilinski, 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 Scheidemann

26th Infantry Division

43rd Infantry Division

III Corps – General Jepantschin

25th Infantry Division

27th Infantry Division

IV Corps – General Aliew

30th Infantry Division

40th Infantry Division

XX Corps – General Smirnow

28th Infantry Division

29th Infantry Division

Unattached

56th Infantry Division

221st Roslav Infantry Regiment

222nd Krasnan Infantry Regiment

223rd Odoev Infantry Regiment

224th Yukhnov Infantry Regiment

73rd Artillery (Reserve) Brigade

5th Rifle Brigade

1st Guard Cavalry Division – Lt. Gen. Kasnakow

1st Brigade

Chevalier Guard Regiment

Guard Cavalry Regiment

2nd Brigade

Guard Cuirassier Regiment of the Emperor

Guard Cuirassier Regiment of Empress Marie

2nd Guard Cavalry Division – Lt. Gen. Rauch

1st Brigade

Guard Horse Grenadier Regiment

Guard Ulan Regiment of the Empress

2nd Brigade

Guard Dragoon Regiment

Guard Hussar Regiment of the Emperor

1st Cavalry Division – Lt. Gen. Romeiko-Gurko

2nd Cavalry Division – Lt. Gen. Chan Hussein Nachitschewanski

3rd Cavalry Division – Lt. Gen. Belgard

1st Independent Cavalry Brigade

19th Dragoons

16th Hussars

3rd Horse Battery

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 Duschkewitsch

22nd Infantry Division

24th Infantry Division

VI Corps – General Blagowjeschtschenski

4th Infantry Division

16th Infantry Division

XIII Corps – Lt. Gen. Klujew

1st Infantry Division

36th Infantry Division

XV Corps – General Martos

6th Infantry Division

8th Infantry Division

XXIII Corps – General Kondratowitsch

3rd Guard Infantry Division

1st Brigade

Guard Regiment Lithuania

Guard Regiment Kexholm – Colonel Sirelius

2nd Brigade

Guard Regiment St. Petersburg

Guard Regiment Wolhyna

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. Grünert, Quartermaster General
Maj. Gen. Kersten, Chief Engineer
Lt. Col. Max Hoffmann, Chief of Operations

I Army Corps – General Hermann von François

1st Infantry Division – Lt. Gen. von Conta

1st Infantry Brigade – Maj. Gen. von Trotha 1st Grenadiers – Lt. Col. Eggerss 41st Infantry – Colonel Schönfeld 2nd Infantry Brigade – Maj. Gen. Paschen 3rd Grenadiers – Colonel von Wedel 43rd Infantry – Colonel von Eisenhart-Rothe 1st Field Artillery Brigade – Maj. Gen. Moewes 16th Field Artillery – Colonel Bromeis 52nd Field Artillery – Colonel Hellwig 8th Uhlans – Lt. Col. Freiherr Schäffer von Bernstein

2nd Infantry Division – Lt. Gen. von Falk

3rd Infantry Brigade – Maj. Gen. Mengelbier 4th Grenadiers – Colonel Stern 44th Infantry – Colonel von Löper 4th Infantry Brigade – Maj. Gen. Böß 33rd Fusiliers – Lt. Col. Weicke 45th Infantry – Colonel Maaß

XVII Army Corps – General August von Mackensen

35th Infantry Division Lt. Gen. Hennig

70th Infantry Brigade – Maj. Gen. Schmitt von Knobelsdorf 21st Infantry – Colonel Brunnemann 61st Infantry – Maj. Lüdecke 87th Infantry Brigade – Maj. Gen. von Hahn 141st Infantry – Lt. Col. von Steinkeller 176th Infantry – Maj. Runge 35th Field Artillery Brigade – Maj. Gen. Uhden 71st Field Artillery – Lt. Col. Hecht 81st Field Artillery – Lt. Col. Bertog 4th Mounted Rifles – Lt. Col. Freiherr von Lön

36th Infantry Division – Lt. Gen. von Heineccius

69th Infantry Brigade – Maj. Gen. von Engelbrechten 129th Infantry – Colonel Breßler 175th Infantry – Lt. Col. Schleenstein 71st Infantry Brigade – Colonel von Dewitz 5th Grenadiers – Colonel Freiherr von Eichendorff 128th Infantry – Colonel von Tresckow 36th Field Artillery Brigade – Maj. Gen. Hahndorff 36th Field Artillery – Maj. Waldeyer 72nd Field Artillery – Colonel von Rabenau 5th Hussars – Colonel Freiherr von Barnekow

XX Army Corps – General von Scholtz

37th Infantry Division – Lt. Gen. von Staabs

73rd Infantry Brigade – Maj. Gen. Wilhelmi 147th Infantry – Colonel Ritzsch 151st Infantry – Colonel Dorsch 1st Jager Battalion – Maj. Weigelt 75th Infantry Brigade – Maj. Gen. von Böckmann 146th Infantry – Colonel von Heydebreck 150th Infantry – Colonel Küster 37th Field Artillery Brigade – Maj. Gen. Buchholz 73rd Field Artillery – Colonel Forst 82nd Field Artillery – Lt. Col. Plantier 11th Dragoons – Lt. Col. Maaß

41st Infantry Division – Maj. Gen. Sontag

72nd Infantry Brigade – Maj. Gen. Schaer 18th Infantry – Colonel Mecke 59th Infantry – Colonel Sonntag 74th Infantry Brigade – Maj. Gen. Reiser 148th Infantry – Colonel von der Osten 152nd Infantry – Colonel Geisler 41st Field Artillery Brigade – Maj. Gen. Neugebauer 35th Field Artillery – Lt. Col. Wilke 79th Field Artillery – Lt. Col. Marcus 10th Dragoons – Lt. Col. von Lewinski

I Reserve Corps – Lt. Gen. Otto von Below

1st Reserve Division – Lt. Gen. von Förster

1st Reserve Infantry Brigade – Ma. Gen. Barre 1st Reserve Infantry – Lt. Col. von Sommerfeld und Falkenhayn 3rd Reserve Infantry – Lt. Col. von Steuber 72nd Reserve Infantry Brigade – Maj. Gen. Licht 18th Reserve Infantry – Lt. Col. Freiherr von Lützow 59th Reserve Infantry – Lt. Col. Modrow 1st Reserve Jager Battalion – Cpt. Mellin 1st Reserve Field Artillery – Lt. Col. Schulz

3rd Reserve Division – Lt. Gen. von Morgen

5th Reserve Infantry Brigade – Maj. Gen. Hesse 2nd Reserve Infantry – Lt. Col. Rodig 9th Reserve Infantry – Lt. Col. Wobring 6th Reserve Infantry Brigade – Maj. Gen. Krause 34th Reserve Infantry – Colonel Hein 49th Reserve Infantry – Lt. Col. Freiherr von Eberstein 3rd Reserve Field Artillery Maj. Erhardt 5th Reserve Dragoons – Maj. von Götz 1st Reserve Uhlans – Maj. Berner

36th Reserve Division – Maj. Gen. Kruge

69th Reserve Infantry Brigade – Maj. Gen. Homeyer 21st Reserve Infantry – Lt. Col. Heyn 61st Reserve Infantry – Colonel Immanuel 2nd Reserve Jager Battalion – Cpt. Brückner 70th Reserve Infantry Brigade – Maj. Gen. Bett 5th Reserve Infantry – Lt. Col. Graf zu Reventlow 54th Infantry (detached from the 3rd Division at the outbreak of war) – Colonel von Tippelskirch 36th Reserve Field Artillery – Lt. Col. Lannert 1st Reserve Hussars – Maj. von Borcke

Höheres Landwehr Kommando No. 1 / 1st Landwehr Division – Lt. Gen. Georg Freiherr von der Goltz

33rd Mixed Landwehr Brigade – Maj. Gen. von Örtzen 75th Landwehr Infantry – Lt. Col. von Stwolinski 76th Landwehr Infantry – Lt. Col. Billig 34th Mixed Landwehr Brigade – Lt. Gen. von Pressentin 31st Landwehr Infantry – Lt. Col. von Lilienhoff-Zwowitzki 84th Landwehr Infantry – Colonel Becker Landwehr Cavalry Regiment – Cpt. von Sydow

1st Cavalry Division – Lt. Gen. Brecht

1st Cavalry Brigade – Colonel von Glasenapp 3rd (East Prussian) Cuirassiers "Count Wrangel" – Lt. Col. von Lewinski 1st (Lithuanian) Dragoons "Prince Albrecht of Prussia" – Lt. Col. Graf von Kanitz 2nd Cavalry Brigade – Maj. Gen. Freiherr von Kapherr 12th (Lithuanian) Uhlans – Colonel von Below 9th Jäger zu Pferde – Lt. Col. von Koppelow 41st Cavalry Brigade – Maj. Gen. von Hofmann 5th (West Prussian) Cuirassiers "Duke Frederick Eugene of Württemberg" – Lt. Col. von Rex 4th (1st Pomeranian) Uhlans "von Schmidt" – Maj. Charisius

Other units in the field

Königsbergs Reserve – Lt. Gen. von Pappritz Königsberg Fortress Division – Lt. Gen. Brodrück Thorn Fortress Division – Lt. Gen. von Schmettau Graudenz Fortress Division – Maj. Gen. Fritz von Unger Lötzen Fortress Brigade – Colonel Busse 6th Landwehr Brigade – Maj. Gen. Kramer 70th Landwehr Brigade – Maj. Gen. Breithaupt

Reinforcements

Posen Fortress Division 1st Landwehr Division 2nd Landwehr Brigade – Colonel Freiherr von Lupin

From the Western Front

XI Army Corps Guards Reserve Corps