Did you forget American Navy's 7th fleet in Bay of Bengal in 1971. Do you really think Indira Gandhi would be sitting quiet simply with liberating Bangladesh if American help hadn't come for Pakistan.
Tashkent Agreement, (Jan. 10, 1966), accord signed by India’s prime minister Lal Bahadur Shastri (who died the next day) and Pakistan’s president Ayub Khan, ending the 17-day war between Pakistan and India of August–September 1965. A cease-fire had been secured by the United Nations Security Council on Sept. 22, 1965.
The agreement was mediated by Soviet premier Aleksey Kosygin, who had invited the parties to Tashkent. The parties agreed to withdraw all armed forces to positions held before Aug. 5, 1965; to restore diplomatic relations; and to discuss economic, refugee, and other questions. The agreement was criticized in India because it did not contain a no-war pact or any renunciation of guerrilla aggression in Kashmir.
In 1965 war, Pakistan ammunition was almost exhaust, both superpowers came for Pakistan rescue at Tashkent.
The nature of the India-Pakistan conflict took a more sinister turn when the U.S. received intelligence that Pakistani nuclear warheads were being moved towards the border. Bill Clinton tried to dissuade Pakistan prime minister Nawaz Sharif from nuclear brinkmanship, even threatening Pakistan of dire consequences. According to a White House official, Sharif seemed to be genuinely surprised by this supposed missile movement and responded that India was probably planning the same. In an article in May 2000 Dr Sanjay Badri-Maharaj claimed that India too had readied at least five nuclear-tipped ballistic missiles, but could not back up this claim with any official proof.[90]
Sensing a deteriorating military scenario, diplomatic isolation, and the risks of a larger conventional and nuclear war, Sharif ordered the Pakistani army to vacate the Kargil heights. He later claimed in his official biography that General Pervez Musharraf had moved nuclear warheads without informing him.[91] Recently however, Pervez Musharraf revealed in his memoirs that Pakistan's nuclear delivery system was not operational during the Kargil war;[47] something that would have put Pakistan under serious disadvantage if the conflict went nuclear.
In 1999, Pervez Musharraf sent Nawaz Sharif to America to stop the war after the fall of Tololing peak. (Testimony by General Jamshed Gulzar Kiyani).