Army in Burma Reserve of Officers
An Army in Burma Reserve of Officers (ABRO) was formed when the war started in 1939. It was formed partly by the transfer to it of officers resident in Burma who were on the Army in India Reserve of Officers list and partly by the acceptance of new entrants.
Following the outbreak of war, many officers serving with British infantry battalions in Burma and those serving with the Burma Forces were posted away, to help with the expansion of the British and Indian Armies. Replacements for these officers as well as additional officers to support the expansion of the Burma Army were found by the appointment of officers from the ABRO.
The ABRO included Europeans resident in Burma granted King's Commissions and a number of Burman gentlemen who were also granted King's Commissions. A considerable number of the officers in this reserve had previously been members of the Indian equivalent - the AIRO.
Before the end of 1939 the first series of officers' training courses had begun in Maymyo. After September 1940 the normal channel of entry came to be through the Militia and Officer Cadet Training Unit. The National Service Act of 1940 made it obligatory for European British subjects of military age to join it.
By the beginning of 1942 the Army in Burma Reserve of Officers had increased to a strength of over nine hundred. In addition about one hundred and fifty gentlemen had received Emergency Commissions. Of all these the very great majority were European British subjects who had been resident in Burma.
After arrival in India, Officers belonging to the ABRO were placed at the disposal of the Commander-in-Chief, India, with the proviso in the majority of cases that they should be returned for service if required to do so by the Government of Burma. All Officers retained their ABRO commissions. 
Vivian Rodrigues has documented the history of the ABRO and listed those enrolled, those who became casualties and those who received awards. The lists can be accessed via the Anglo-Burmese Library web site at the War Against Japan page.
21 May 2015