diplomacy did not work in last 50 years, india tried to break up pakistan repeatedly in the past, and still trying, no matter what. like they say, kuttay ki dum terhi hee rehti hay. you cannot expect any good from a neighbors when core of their ideology is based of deception, lies and divide, and who always attacks you harder when to try to make peace with them.
what kind of crappy diplomacy is it that india keep on repeating same lines of terrorism and never look at what they are doing in pakistan (baluchistan and fata)?