We do not have any vaguely significant presence in either Pakistan or India.
India is THE emerging economy in the East. Pakistan can’t begin to compete with it. India is nuclear, has a strong army, navy, and air force, and it has a population that dwarfs most countries in the world.
Pakistan and Afghanistan both have countries which are ultimately unfriendly to islamofascists to the north and south in India and China.
India will not tolerate expansion or terror in their quadrant.
And the US can always do what it should have done from the beginning. Have no presence but play “shock and awe” as a reprisal only if they bother us in any way.
Excepting Afghanistan under the Taliban, the smaller states of central Asia likewise have no love for the bomb-throwing hajjis.
The problem is the military aid the us gives and gave Pakistan. If that had not happened, India could take care of Pakistan easily.