German First Army
(General von Kluck)
II Corps
(Genral von Lisengen)
- 30th Aviation Battalion
- 15th Foot Artillery Regiment (heavy)
3rd Infantry Division
- 3rd Artillery Brigade
- 3rd Horse Grenadiers
- 5th Infantry Brigade
- 2nd Grenadier Regiment
- 9th Grenadier Regiment
- 6th Infantry Brigade
- 34th Fusilier Regiment
- 42nd Infantry Regiment
4th Infantry Division
- 4th Artillery Brigade
- 12th Dragoons
- 7th Infantry Brigade
- 14th Infantry Regiment
- 149th Infantry Regiment
- 8th Infantry Brigade
- 49th Infantry Regiment
- 140th Infantry Regiment
III Corps
(General von Lochow)
- 7th Aviation Battalion
- 2nd Guard Foot Artillery (heavy)
- 3rd Hussars
5th Infantry Division
- 5th Artillery Brigade
- 9th Infantry Brigade
- 8th Leib Grenadier Regiment
- 48th Infantry Regiment
- 10th Infantry Brigade
- 12th Grenadier Regiment
- 52nd Infantry Regiment
6th Infantry Division
- 6th Artillery Brigade
- 11th Infantry Brigade
- 20th Infantry Regiment
- 35th Fusilier Regiment
- 12th Infantry Brigade
- 24th Infantry Regiment
- 64th Infantry Regiment
- 3rd Jaeger Battalion
IV Corps
(General von Arnim)
- 9th Aviation Battalion
- 4th Foot Artillery Regiment (heavy)
- 10th Hussars
7th Infantry Division
- 7th Artillery Brigade
- 13th Infantry Brigade
- 26th Infantry Regiment
- 66th Infantry Regiment
- 14th Infantry Brigade
- 27th Infantry Regiment
- 165th Infantry Regiment
8th Infantry Division
- 8th Artillery Brigade
- 15th Infantry Brigade
- 36th Fusilier Regiment
- 93rd Infantry Regiment
- 16th Infantry Brigade
- 72nd Infantry Regiment
- 153rd Infantry Regiment
- 4th Jaeger Battalion
IX Corps
General von Quast)
- 9th Aviation Battalion
- 20th Foot Artillery Regiment (heavy)
- 16th Dragoons
17th Infantry Division
- 17th Artillery Brigade
- 33rd Infantry Brigade
- 75th Infantry Regiment
- 76th Infantry Regiment
- 34th Infantry Brigade
- 89th Grenadier Regiment
- 90th Fusilier Regiment
- 9th Jaeger Battalion
18th Infantry Division
- 18th Artillery Brigade
- 35th Infantry Brigade
- 84th Infantry Regiment
- 86th Fusilier Regiment
- 36th Infantry Brigade
- 31st Infantry Regiment
- 85th Infantry Regiment
III Reserve Corps
(General von Beseler)
5th Reserve Division
- 2nd Reserve Dragoon Regiment (3 squadrons)
- 6th Reserve Field Artillery Regiment (6 batteries)
- 9th Reserve Infantry Brigade
- 8th Reserve Infantry Regiment
- 48th Reserve Infantry Regiment
- 10th Reserve Infantry Brigade
- 12th Reserve Infantry Regiment
- 52nd Reserve Infantry Regiment
6th Reserve Division
- 3rd Reserve Uhlan Regiment (3 squadrons)
- 6th Reserve Field Artillery Regiment (6 batteries)
- 11th Reserve Infantry Brigade
- 20th Reserve Infantry Regiment
- 24th Reserve Infantry Regiment
- 12the Reserve Infantry Brigade
- 26th Reserve Infantry Regiment
- 35th Reserve Infantry Regiment
IV Reserve Corps
(General von Boehn)
7th Reserve Division
- 1st Reserve Schwere Reiter Regiment (3 squadrons)
- 7th Field Artillery Regiment (6 batteries)
- 13th Reserve Brigade
- 27th Reserve Infantry Regiment
- 36th Reserve Infantry Regiment
- 14th Reserve Brigade
- 66th Reserve Infantry Regiment
- 72nd Reserve Infantry Regiment
- 4th Reserve Jaeger Battalion
22nd Reserve Division
- 1st Reserve Jäger zu Pferde Regiment (3 squadrons)
- 22nd Reserve Field Artillery Regiment (6 batteries)
- 43rd Reserve Infantry Brigade
- 71st Reserve Infantry Regiment
- 94th Reserve Infantry Regiment
- 11th Reserve Jaeger Battalion
- 44th Reserve Infantry Brigade
- 32nd Reserve Infantry Regiment
- 82nd Reserve Infantry Regiment
10th Mixed Landwehr Brigade
- 12th Landwehr Infantry Regiment
- 52nd Landwehr Infantry Regiment
11th Mixed Landwehr Brigade
- 20th Landwehr Infantry Regiment
- 35th Landwehr Infantry Regiment
27th Landwehr Brigade
- 53rd Landwehr Infantry Regiment
- 55th Landwehr Infantry Regiment
Landwehr Cavalry Unit (3 squadrons)
Lansturm Artillery Unit (2 batteries)
- 12th Aviation Battalion
British Expeditionary Force
(Field Marshal Sir John French)
The Cavalry Division
(Major-Genral E. Allenby)
- 1st Cavalry Brigade
- 2nd Dragoon Guards
- 5th Dragoon Guards
- 11th Hussars
- 2nd Cavalry Brigade
- 4th Dragoon Guards
- 9th Lancers
- 19th Hussars
- 3rd Cavalry Brigade
- 4th Hussars
- 5th Lancers
- 16th Lancers
- 4th Cavalry Brigade
- 6th Dragoon Guards
- 3rd Hussars
- Household Cavalry Composite Regiment
- 5th Cavalry Brigade
- 2nd Dragoons
- 12th Lancers
- 20th Hussars
- III Brigade Royal Horse Artillery
- 'D' Battery
- 'E' Battery
- VIII Brigade Royal Horse Artillery
- 'I' Battery
- 'L' Battery
I Corps
(Lieutenant-General Sir Douglas Haig)
1st Division (Lomax)
- 1st Guards Brigade
- 1st Coldstream Guards
- 1st Scots Guards
- 1st Black Watch
- 2nd Royal Munster Fusiliers
- 2nd Infantry Brigade
- 2nd Royal Sussex
- 1st Loyal North Lancashire
- 1st Northamptonshire
- 2nd The Kings Royal Rifle Corps
- 3rd Infantry Brigade
- 1st Royal West Surrey
- 1st South Wales Borderers
- 1st Gloucestershire
- 2nd Welsh
- XXV Brigade Royal Field Artillery
- 113th Battery
- 114th Battery
- 115th Battery
- XXVI Brigade Royal Field Artillery
- 116th Battery
- 117th Battery
- 118th Battery
- XXXIX Brigade Royal Field Artillery
- 46th Battery
- 51st Battery
- 54th Battery
- XLIII (Howitzer) Royal Field Artillery
- 30th (howitzer) Battery
- 40th (howitzer) Battery
- 57th (howitzer) Battery
- 26th Heavy Battery Royal Garrison Artillery
- 23rd, 26th Field Companies Royal Engineers
2nd Division
- 4th Guards Brigade
- 2nd Grenadier Guards
- 2nd Coldstream Guards
- 3rd Coldstream Guards
- 1st Irish Guards
- 5th Infantry Brigade
- 2nd Worcestershire
- 2nd Oxfordshire and Buckinghamshire Light Infantry
- 2nd Highland Light Infantry
- 2nd Connaught Rangers
- 6th Infantry Brigade
- 1st Liverpool
- 2nd South Staffordshire
- 1st Royal Berkshire
- 1st Kings Royal Rifle Corps
- XXXIV Brigade Royal Field Artillery
- 22nd Battery
- 50th Battery
- 70th Battery
- XXXVI Brigade Royal Field Artillery
- 15th Battery
- 48th Battery
- 71st Battery
- XLI Brigade Royal Field Artillery
- 9th Battery
- 16th Battery
- 17th Battery
- XLIV (Howitzer) Brigade Royal Field Artillery
- 47th (howitzer) Battery
- 56th (howitzer) Battery
- 60th (howitzer) Battery
- 35th Heavy Battery Royal Garrison Artillery
5th, 11th Field Companies Royal Engineers
II Corps
(Lieutenant-General Sir Horace Smith-Dorrien)
3rd Division
- 7th Infantry Brigade
- 3rd Worcestershire
- 2nd South Lancashire
- 1st Duke of Edinburgh's
- 2nd Royal Irish Rifles
- 8th Infantry Brigade
- 2nd Royal Scots
- 2nd Royal Irish
- 4th Middlesex
- 1st Gordon Highlanders
- 9th Infantry Brigade
- 1st Northumberland Fusiliers
- 4th Royal Fusiliers
- 1st Lincolnshire
- 1st Royal Scots Fusiliers
- XXIII Brigade Royal Field Artillery
- 107th Battery
- 108th Battery
- 109th Battery
- XL Brigade Royal Field Artillery
- 6th Battery
- 23rd Battery
- 49th Battery
- XLII Brigade Royal Field Artillery
- 29th Battery
- 41st Battery
- 75th Battery
- XXX (Howitzer) Brigade Royal Field Artillery
- 128th (howitzer) Battery
- 129th (howitzer) Battery
- 130th (howitzer) Battery
- 48th Heavy Battery Royal Garrison Artillery
58thd, 57th Field Companies Royal Engineers
5th Division
- 13th Infantry Brigade
- 2nd Kings Own Scottish Borderers
- 2nd Duke of Wellington's Own
- 1st Royal West Kent
- 2nd Yorkshire Light Infantry
- 14th Infantry Brigade
- 2nd Suffolk
- 1st East Surrey
- 1st Duke of Cornwall's Light Infantry
- 2nd Manchester
- 15th Infantry Brigade
- 1st Norfolk
- 1st Bedfordshire
- 1st Cheshire
- 1st Dorsetshire
- XV Brigade Royal Field Artillery
- 11th Battery
- 52nd Battery
- 81st Battery
- XXVII Brigade Royal Field Artillery
- 119th Battery
- 120th Battery
- 121st Battery
- XXVII Brigade Royal Field Artillery
- 122nd Battery
- 123rd Battery
- 124th Battery
- VIII (Howitzer) Brigade Royal Field Artillery
- 37th (howitzer) Battery
- 61st (howitzer) Battery
- 65th (howitzer) Battery
- 108th Heavy Battery Royal Garrison Artillery
17th, 59th Field Companies Royal Engineers
19th Independent Infantry Brigade (III Corps)
- GOC Major-General LG Drummond CB, MVO
- 2nd Royal Welch Fusiliers
- 1st Scottish Rifles/Cameronians
- 1st Middlesex
- 2nd Argyll and Sutherland Highlanders
Royal Flying Corps in the Field
(Brigadier-General Sir D. Henderson)
- 2nd Aeroplane Squadron (Burke)
- 3rd Aeroplane Squadron (Salmond)
- 4th Aeroplane Squadron (Raleigh)
- 5th Aeroplane Squadron (Higgins)
- 1st Aircraft Park