Later, as head of IDSA, Subrahmanyam was instrumental in helping compile some of the first authoritative reports on the war, in association with some of its key players. He would later write that the 1971 war saw the fledgling IDSA coming into its own as a well-regarded and influential think tank. Quite a bit of his commentary on the messy Cold War politics that shadowed the entire war – which included US moral support to Pakistan, its later dispatch of the USS Enterprise to the Bay of Bengal, and tacit Soviet support to India – along with his related prescriptions for Indian foreign policy found their way into subsequent Indian military doctrine. He has since stated that the major lesson learnt from this war, on the administrative synergy required – where civilian leadership maintains close co-ordination with Intelligence and a pro-active rapport with military brass – has not been adequately enshrined as a guiding tenet of Indian security policy, which tends, in turn, to gravitate towards powerful political and bureaucratic interests.