Changes

**''Part 3A New Army Divisions (9-26)'' pub. 1938. [https://archive.org/details/order-battle-divisions-p-3-a Archive.org]

*:[https://archive.org/details/order-battle-divisions-pt3b ''Part 3B New Army divisions (30-41) and 63rd (R.N.) Division''] pub. HMSO 1945 Archive.org.

: Includes some details about Mesopotamia, (perhaps limited?) but note these books appear to be in respect of the British Army only, (not Indian Army).

: There were subsequent publications ''Order of Battle of Divisions Part 5A, Divisions of Australia, Canada and New Zealand and those in East Africa'', compiled by F.W. Perry c 1992. Available at the British Library UIN: BLL01006378898 and ''Order of Battle of Divisions. Part 5B, Indian Army Divisions'' compiled by F. W. Perry c 1993 available at the B.L. UIN: BLL01008151437 . The latter is also catalogued with the additional title ''History of the Great War : based on official documents''.

*''Field Notes Mesopotamia'' by General Staff India 1915 (Poor quality print) [https://archive.org/details/in.ernet.dli.2015.108689 Archive.org version], mirror from Digital Library of India.

* Turkish Official Histories [https://www.msb.gov.tr/ArsivAskeriTarih/icerik/birinci-dunya-harbi-serisi Birinci Dünya Harbi Serisi / World War I Series] from Ministry of National Defence, Republic of Turkey. Includes maps. Includes Item 20 ''Birinci Dünya Harbinde Türk Harbi, Irak-İran Cephesi (1914-1918) III Cilt'' and Item 6 ''Birinci Dünya Harbi’nde Türk Harbi İran - Irak Cephesi 1914 - 1918, C 3, Ks. 2''. Using [https://translate.google.com.au/#view=home&op=translate&sl=tr&tl=en Google Translate] Item 20 ''Turkish War in the First World War, Iraqi-Iran Front (1914-1918) III Volume'' and Item 6 ''Turkish War in the First World War Iran - Iraq Front 1914 - 1918, C 3, Ks. 2nd''. There is also item 15 ''Birinci Dünya Harbi, Türk Hava Harekatı C.9'' ''Air Operations'', and item 16 ''Birinci Dünya Harbinde Türk Harbi, Deniz Harekâtı C.8'' ''Naval Operations''. Histories are in the Turkish language.

=====General histories etc=====

*[https://archive.org/details/bastardwarmeso00bark/page/n3/mode/2up ''The Bastard War: the Mesopotamian Campaign of 1914-1918''] by A. J Barker (Lieut.-Colonel Arthur James Barker) 1967. UK title ''The Neglected War: Mesopotamia, 1914-1918''. Reprinted in 2009 with the title ''The First Iraq War: 1914-1918''. "The best overall account of the Mesopotamian Campaign" (a 2003 opinion).<ref>