The Indian Army during World War II, a British force also referred to as the British Indian Army, began the war, in 1939, numbering just under 200,000 men. By the end of the war, it had become the largest volunteer army in history, rising to over 2.5 million men in August 1945. Serving in divisions of infantry, armour and a fledgling airborne force, they fought on three continents in Africa, Europe and Asia..

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