The way I see it, the Pakistan-India border is really volatile.
I mean China has a lot of diplomatic disputes nowadays (mostly maritime) but none of them involve mass killings of soldiers on both sides, or even beheadings, like what seems to happen a lot on the Kashmir border. In fact there is no cross-border bloodshed at all.
In the worst case scenario, we might get into a naval skirmish with some SE Asian nation. Since they are all maritime disputes, they are inherently limited to naval skirmishes, and not to full-scale war. Our only real chance of a full-scale land-war is with India, since that's our only land-border dispute, and even then it's locked off by the Himalayas.
So one serious troublemaker can easily stir up a lot of trouble and bloodshed on the Pakistan/India border with a simple false-flag attack. Groups/organizations, countries, even powerful individuals looking to make a quick buck on the stock markets.
Or even one guy with an itchy trigger finger. It's better for the whole region if this knife-edge situation can be reduced significantly.