The Indian Army was the largest volunteer army during the Second World War. Indian Army divisions fought in the Middle East, North Africa and Italy - and went to make up the overwhelming majority of the troops in South East Asia. Over two million personnel served in the Indian Army - and India provided the base for supplies for the Middle Eastern and South East Asian theatres. This monograph is a modern historical interpretation of the Indian Army as a holistic organisation during the Second World War. It will look at training in India - charting how the Indian Army developed a more comprehensive training structure than any other Commonwealth country. This was achieved through both the dissemination of doctrine and the professionalism of a small coterie of Indian Army officers who brought about a military culture within the Indian Army - starting in the 1930s - that came to fruition during the Second World War, which informed the formal learning process.