General Officer Commanding-in-Chief Field-Marshal Sir Douglas Haig.
First Army. Lieut.-Gen. Sir H. S. Horne.
1st Army Corps: Lieut.-Gen. A. E. A. Holland.
11th Army Corps: Lieut.-Gen. Sir E. C. R. Haking.
13th Army Corps: Major-Gen. F. W. N. McCracken.
Second Army General Sir H. C. O. Plumer.
2nd Army Corps (with 5th Army during Aug.): Lieut.-Gen. Sir C. W. Jacob.
8th Army Corps (with 5th Army during Aug. & Sept.): Major-Gen. Sir A. G. Hunter-Weston.
9th Army Corps: Lieut.-Gen. A. Hamilton Gordon.
10th Army Corps: Major-Gen. Sir T. L. N. Morland.
1st Anzac Corps: Lieut.-Gen. Sir W. R. Birdwood.
2nd Anzac Corps: Major-Gen. Sir A. J. Godley.
Third Army. Lieut.-Gen. the Hon. Sir J. H. G. Byng.
3rd Army Corps: Lieut.-Gen. Sir W. P. Pulteney.
4th Army Corps: Lieut.-Gen. Sir C. L. Woollcombe.
6th Army Corps: Major-Gen. J. A. L. Haldane.
17th Army Corps: Lieut.-Gen. Sir C. Ferguson.
Fourth Army General Sir H. S. Rawlinson, Bart.
15th Army Corps: Major-Gen. Sir J. P. Du Cane.
Fifth Army Lieut.-Gen. Sir H. de la P. Gough.
2nd Army Corps (see 2nd Army): Lieut.-Gen. Sir C. W. Jacob.
5th Army Corps: Lieut.-Gen. E. A. Fanshaw.
8th Army Corps (see 2nd Army): Major-Gen. Sir A. G. Hunter-Weston.
14th Army Corps: Lieut.-Gen. Lord Cavan.
18th Army Corps: Major-Gen. Sir F. L. Maxse.
19th Army Corps: Major-Gen. H. E. Watts.
New Zealand Division (Unattached): Major-Gen. Sir A. H. Russell.
Canadian Army Corps: Lieut.-Gen. Sir E. A. H. Alderson.