Iraq May 1941
Commanded by Major-General W.A.K. Fraser (until 8 May). Lieutenant-General Edward Quinan (from 8 May).
- 10th Indian Infantry Division - Major-General W.A.K. Fraser (until 16 May). Major-General William Slim (from 16 May).
- 13th Duke of Connaught's Own Lancers (reconnaissance regiment in armoured cars)
- 3rd Field Regiment Royal Artillery
- 32nd Field Regiment Royal Artillery
- 157th Field Regiment Royal Artillery
- 20th Indian Infantry Brigade - Brigadier Donald Powell
- 2nd battalion 8th Gurkha Rifles
- 2nd battalion 7th Gurkha Rifles
- 3rd battalion 11th Sikh Regiment
- 21st Indian Infantry Brigade - Brigadier C.J. Weld
- 4th battalion 13th Frontier Force Rifles
- 2nd battalion 4th Gurkha Rifles
- 2nd battalion 10th Gurkha Rifles
- 25th Indian Infantry Brigade - Brigadier Ronald Mountain
- 3rd battalion 9th Jat Regiment
- 2nd Royal battalion 11th Sikh Regiment
- 1st battalion 5th Mahratta Light Infantry
- Ground Forces at RAF Habbaniya - Air Vice-Marshal H. G. Smart (until 5 May). Colonel Ouvry Roberts (from 5 May).
- 1st battalion The King's Own Royal Regiment (Lancaster)
- 1,200 Assyrian and Iraqi Levies - Lieutenant-Colonel J. A. Brawn
- Number 1 Armoured Car Company RAF
- Habforce commanded by Major-General J.G.W. Clark
- Mechanized squadron of the Transjordan Frontier Force - Refused to enter Iraq and were disarmed.
- Detachment of the Arab Legion - John Glubb "Glubb Pasha"
- Striking force Kingcol - Brigadier J.J. Kingstone
- 4th Cavalry Brigade - Lieutenant-Colonel A. H. Ferguson
- Composite Household Cavalry Regiment
- The Warwickshire Yeomanry
- The Royal Wiltshire Yeomanry
- 237th Battery 60th Field Regiment, Royal Artillery
- A & D Companies, 1st Battalion Essex Regiment - Major K. F. May - Accompanied by two Bren gun carriers. Personnel carried in transport of the Royal Army Service Corps.
- One anti-tank troop, Royal Artillery
- Number 2 Armoured Car Company RAF
- Two supply companies, Royal Army Service Corps
- 4th Cavalry Brigade - Lieutenant-Colonel A. H. Ferguson
- Main Body - Lieutenant-Colonel J. S. Nichols, MC
- Headquarters 1st Cavalry Division (elements)
- 1st Battalion Essex Regiment
- 60th Field Regiment, Royal Artillery
- One Battery of anti-tank guns, Royal Artillery
Formed from existing units in early June:
- Gocol - R. E. S. Gooch
- Mercol - E. J. H. Merry
- Harcol - R. J. Hardy
Arriving At Basra on 9 June:
- 17th Indian Infantry Brigade (detached from 8th Indian Infantry Division) - Brigadier Douglas Gracey
- 1st Battalion Royal Fusiliers
- 1st Battalion (Prince of Wales Own Sikhs) 12th Frontier Force Regiment
- 1st Battalion 5th Royal Gurkha Rifles
Arriving at Basra on 16 June:
- 24th Indian Infantry Brigade - Brigadier R.E. Le Fleming
- 2nd Battalion 6th Rajputana Rifles
- The Kumaon Rifles
- 5th Battalion 5th Mahratta Light Infantry
Read more about this topic: Iraqforce, Order of Battle