Jiffs was a pejorative term used by British Intelligence, and later the 14th Army, to denote soldiers of the Indian National Army after the failed First Arakan offensive of 1943. The term is derived from the acronym JIFC, short for Japanese-Indian (or -inspired) fifth column. It came to be employed in a propaganda offensive in June 1943 within the British Indian Army as a part of the efforts to preserve the loyalty of the Indian troops at Manipur after suffering desertion and losses at Burma during the First Arakan Offensive. After the end of the war, the term "HIFFs" (from Hitler-inspired-fifth-columnists) was also used for repatriated troops of the Indian Legion awaiting trial.
The prestige of the Raj had suffered a blow with the fall of British Malaya and, later, the massive surrender at Singapore. In February 1942, the Indian prisoners of war from the British Indian Army captured there came under the influence of Indian nationalists, notably Mohan Singh Deb, and a large number volunteered to form the Indian National Army with support from Japan and had the stated aim of overthrowing The Raj from India. Of the formation of this army however, the British intelligence was unaware of until around July 1942, and even then was unclear on the scale, purpose and organisation of the INA.