Too bad we are stuck with this group of touchy, feelgood “leaders” for a few more years. The obvious move to me is a feint at Afghanistan and a hard body-blow to Pakistan. Isolate and devastate. Consider the following points and do the mathematical computations:
1)Pakistan has nuclear weapons but little stable governmental control.
2)Pakistan is accessible from the sea.
3)India would welcome a stable Pakistan and therefore assist along that long border.
4)Without Pakistan the Taliban in Afghanistan would lose a lot of logistical support.
5)Surrounded, the Afghan warlords would not start reading their tea leaves a bit differently and align themselves with the strongest faction, the US.

This is chess, not checkers. Too bad war is sometimes waged by politicians.