| 14 Infantry Brigade (Brig. T. Brodie) |
| 2 The Black Watch (R.H.R) |
| 2 York a Lancaer Regiment |
| 7 Leiceershire Regiment |
| 1 Bedfordshire a Hertfordshire Regiment |
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| 16 Infantry Brigade (Brig. B.E. Fergusson) |
| 2 Queen's Royal Regiment |
| 2 Leiceershire Regiment |
| 45 Reconnaissance Regiment |
| 51/69 Field Regiment Royal Artillery |
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| 23 Infantry Brigade (Brig. L.E.C. Perowne) |
| 1 Essex Regiment |
| 2 Duke of Wellington‘s Regiment |
| 4 Border Regiment |
| 60 Field Regiment Royal Artillery |
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| 77 Infantry (Indian) Brigade (Brig. J.M. Calvert) |
| 1 Lancashire Fusilers |
| 1 Straffordshire Regiment |
| 1 King‘s Regiment |
| 3/6 Gurkha Rifles |
| 3/9 Gurkha Rifles |
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| 111 Infantry (Indian) Brigade (Brig. W.D.A. Lentaigne) |
| 1 Cameronians |
| 2 King‘s Own Royal Regiment |
| 3/4 Gurkha Rifles |
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| 3 West African Brigade (Brig. A.H. Gilmore) |
| 6 Nigeria Regiment |
| 7 Nigeria Regiment |
| 12 Nigeria Regiment |
Each Brigade was allocated one company of British, Indian, or West African Engineers, plus Medical, Burma Rifles, and R.A.F detachments.
| Northern Combat Area Command (Brig.-General F. Merrill) |
| 5307 Composite Unit (Provisional) "Merrill‘s Marauders" |
| 1 Battalion - Red and White combat teams |
| 2 Battalion - Blue and Green combat teams |
| 3 Battalion - Orange and Khaki combat teams |
Previously known as code name "Galahad". These were the first US troops committed to the Asian mainland. The "Marauders" consisted of 3 battalions. Each battalion was split into two combat teams.