[1] During the rebellion in Iraq the command of land forces in the country was passed from the Commander-in-Chief, India (GHQ India) to Middle East Command, as the latter was the only formation that could send effective support for operations in northern Iraq and also because air operations were controlled by the Air Officer Commanding-in-Chief (AOC-in-C), Middle East.

[2] The British Chiefs of Staff wished to return control of land forces in Iraq back to Middle East Command but decided to let Operation Crusader get underway before making any changes.

On 12 December 1941 with Operation Crusader well on the way to success, the German threat from the Caucasus subsided and with the Japanese attacks on Thailand, Malaya and Burma the Chiefs of Staff decided now was the time to make changes to the command structure; to unburden GHQ India so it could now solely "look east" and so that speedier planning could take place for forces in the Middle East and eastern Mediterranean areas.

[2] General Sir Archibald Wavell, now the C-in-C, India, opposed such a move as he believed Iraq to be an overburden and distraction to Middle East Command; General Claude Auchinleck, now C-in-C, Middle East Command, believed it to be the right move and would allow speedier planning and the administration and operational aspects of all forces in the Mediterranean Basin and Middle East to be more closely related;[2] the Minister of State also supported such a move as it would help to ease the supply situation and would also, at a later date, help co-ordinate the planning of operations with the United States Armed Forces if they only had one command to deal with.

[10] In 1943, a series of Soviet victories in southern Russia and the success of operations in North Africa rendered the German threat to northern Persia progressively more and more unlikely.