Well.they may increase their footprint .. and for that they only require a missile system setup there and a treaty signed up with local govt. They can use the local airports to enter and exit. Considering the desperate position of US in the region let's not downplay the possibility. Yes they are not fools to Pump up money. Rather they may try to be the occupying force dressed up a sa protector there like they were in Afghanistan.They need at least USD 10 billion to sustain just a year. US and GB are no idiot to pump money. They may come out with just a billion or two but that is simply not enough for the independence nation to work.
And I doubt Pakistan and India would want to see an external influenced setfoot in this internal landlock area. They can simpy denied them air and land access and there is no way, external influenced will work.