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 Trotha1st Grenadiers – Lt. Col. Eggerss41st Infantry – Colonel Schönfeld2nd Infantry Brigade – Maj. Gen. Paschen3rd Grenadiers – Colonel von Wedel43rd Infantry – Colonel von Eisenhart-Rothe1st Field Artillery Brigade – Maj. Gen. Moewes16th Field Artillery – Colonel Bromeis52nd Field Artillery – Colonel Hellwig8th Uhlans – Lt. Col. Freiherr Schäffer von Bernstein

2nd Infantry Division – Lt. Gen. von Falk

3rd Infantry Brigade – Maj. Gen. Mengelbier4th Grenadiers – Colonel Stern44th Infantry – Colonel von Löper4th Infantry Brigade – Maj. Gen. Böß33rd Fusiliers – Lt. Col. Weicke45th Infantry – Colonel Maaß

XVII Army Corps – General August von Mackensen

35th Infantry Division Lt. Gen. Hennig

70th Infantry Brigade – Maj. Gen. Schmitt von Knobelsdorf21st Infantry – Colonel Brunnemann61st Infantry – Maj. Lüdecke87th Infantry Brigade – Maj. Gen. von Hahn141st Infantry – Lt. Col. von Steinkeller176th Infantry – Maj. Runge35th Field Artillery Brigade – Maj. Gen. Uhden71st Field Artillery – Lt. Col. Hecht81st Field Artillery – Lt. Col. Bertog4th Mounted Rifles – Lt. Col. Freiherr von Lön

36th Infantry Division – Lt. Gen. von Heineccius

69th Infantry Brigade – Maj. Gen. von Engelbrechten129th Infantry – Colonel Breßler175th Infantry – Lt. Col. Schleenstein71st Infantry Brigade – Colonel von Dewitz5th Grenadiers – Colonel Freiherr von Eichendorff128th Infantry – Colonel von Tresckow36th Field Artillery Brigade – Maj. Gen. Hahndorff36th Field Artillery – Maj. Waldeyer72nd Field Artillery – Colonel von Rabenau5th Hussars – Colonel Freiherr von Barnekow

XX Army Corps – General von Scholtz

37th Infantry Division – Lt. Gen. von Staabs

73rd Infantry Brigade – Maj. Gen. Wilhelmi147th Infantry – Colonel Ritzsch151st Infantry – Colonel Dorsch1st Jager Battalion – Maj. Weigelt75th Infantry Brigade – Maj. Gen. von Böckmann146th Infantry – Colonel von Heydebreck150th Infantry – Colonel Küster37th Field Artillery Brigade – Maj. Gen. Buchholz73rd Field Artillery – Colonel Forst82nd Field Artillery – Lt. Col. Plantier11th Dragoons – Lt. Col. Maaß

41st Infantry Division – Maj. Gen. Sontag

72nd Infantry Brigade – Maj. Gen. Schaer18th Infantry – Colonel Mecke59th Infantry – Colonel Sonntag74th Infantry Brigade – Maj. Gen. Reiser148th Infantry – Colonel von der Osten152nd Infantry – Colonel Geisler41st Field Artillery Brigade – Maj. Gen. Neugebauer35th Field Artillery – Lt. Col. Wilke79th Field Artillery – Lt. Col. Marcus10th 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. Barre1st Reserve Infantry – Lt. Col. von Sommerfeld und Falkenhayn3rd Reserve Infantry – Lt. Col. von Steuber72nd Reserve Infantry Brigade – Maj. Gen. Licht18th Reserve Infantry – Lt. Col. Freiherr von Lützow59th Reserve Infantry – Lt. Col. Modrow1st Reserve Jager Battalion – Cpt. Mellin1st Reserve Field Artillery – Lt. Col. Schulz

3rd Reserve Division – Lt. Gen. von Morgen

5th Reserve Infantry Brigade – Maj. Gen. Hesse2nd Reserve Infantry – Lt. Col. Rodig9th Reserve Infantry – Lt. Col. Wobring6th Reserve Infantry Brigade – Maj. Gen. Krause34th Reserve Infantry – Colonel Hein49th Reserve Infantry – Lt. Col. Freiherr von Eberstein3rd Reserve Field Artillery Maj. Erhardt5th Reserve Dragoons – Maj. von Götz1st Reserve Uhlans – Maj. Berner

36th Reserve Division – Maj. Gen. Kruge

69th Reserve Infantry Brigade – Maj. Gen. Homeyer21st Reserve Infantry – Lt. Col. Heyn61st Reserve Infantry – Colonel Immanuel2nd Reserve Jager Battalion – Cpt. Brückner70th Reserve Infantry Brigade – Maj. Gen. Bett5th Reserve Infantry – Lt. Col. Graf zu Reventlow54th Infantry (detached from the 3rd Division at the outbreak of war) – Colonel von Tippelskirch36th Reserve Field Artillery – Lt. Col. Lannert1st 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 Örtzen75th Landwehr Infantry – Lt. Col. von Stwolinski76th Landwehr Infantry – Lt. Col. Billig34th Mixed Landwehr Brigade – Lt. Gen. von Pressentin31st Landwehr Infantry – Lt. Col. von Lilienhoff-Zwowitzki84th Landwehr Infantry – Colonel BeckerLandwehr Cavalry Regiment – Cpt. von Sydow

1st Cavalry Division – Lt. Gen. Brecht

1st Cavalry Brigade – Colonel von Glasenapp3rd (East Prussian) Cuirassiers "Count Wrangel" – Lt. Col. von Lewinski1st (Lithuanian) Dragoons "Prince Albrecht of Prussia" – Lt. Col. Graf von Kanitz2nd Cavalry Brigade – Maj. Gen. Freiherr von Kapherr12th (Lithuanian) Uhlans – Colonel von Below9th Jäger zu Pferde – Lt. Col. von Koppelow41st Cavalry Brigade – Maj. Gen. von Hofmann5th (West Prussian) Cuirassiers "Duke Frederick Eugene of Württemberg" – Lt. Col. von Rex4th (1st Pomeranian) Uhlans "von Schmidt" – Maj. Charisius

Other units in the field

Königsbergs Reserve – Lt. Gen. von PappritzKönigsberg Fortress Division – Lt. Gen. BrodrückThorn Fortress Division – Lt. Gen. von SchmettauGraudenz Fortress Division – Maj. Gen. Fritz von UngerLötzen Fortress Brigade – Colonel Busse6th Landwehr Brigade – Maj. Gen. Kramer70th Landwehr Brigade – Maj. Gen. Breithaupt

Reinforcements

Posen Fortress Division1st Landwehr Division2nd Landwehr Brigade – Colonel Freiherr von Lupin

From the Western Front

XI Army CorpsGuards Reserve Corps