Acronyms and Abbreviations associated with the Indian Army in the early 20th Century

AA         Anti-aircraft

ALDFEA Allied Land Forces South East Asia

BO         British Office

C-in-C Commander in chief

CO         Commanding Officer

ECO       Emergency Commissioned Officer (British)

EICO      Emergency Indian Commissioned Officer

GHQ(I)  General Headquarters (India)

GO         Gurkha Officer (Gurkha equivalent of VCO)

ICO        Indian Commissioned Officer

IJO         Imperial Japanese Officer

IJA         Imperial Japanese Army

INA        Indian National Army

IOR        Indian Other Rank

KCIO      King’s Commissioned Indian Officer

LMG      Light Machine Gun

MG        Machine Gun

MT        Motor Transport

NCO      Non-Commissioned Officer (Sergeant, Corporal, etc)

OC         Officer Commanding

OR         Other Rank

PoW      Prisoner of War

RAF       Royal Air Force

SEAC     South East Asia Command

VCO      Viceroy’s Commissioned Officer (Indians holding Officer rank)