As for Pakistan, Pakistan's economy is being destroyed by the mobilization, so their situation is different, and Pakistan can't afford a big war. >> this is what Reagan did to America and India is doing to Pakistan. India can keep troops mobilised in frontline FOREVER - Pakistan will go broke in a year ( i.e. if it is not already ). But there is a delicious irony somewhere - Pakistan tried to emulate the American model in tackling Soviet invasion of Afghanistan. US armed the Islamic insurgents and Soviet withdrew after facing unacceptable caualties. The same bunch of Islamist US supported came back after 10 years to destroy WTC and damage Pentagon.
Pakistan has tried to do the same experiment with Kashmir - arming and supporting Islamic millitants. The difference is that the Indian Army is a voluntary force itching to kill the enemy while the Soviet force was that of 18 year old conscripts crying for Mommy. And economically India is 10X of Pakistan unlike the US - Russia equation where the power supporting the millitants ( Afghan Mujaheddin ) was stronger . I predict the Jehadis that Pakistan has cultivated and then ditched will come back to do a September 11 on Pakistan in the next 5 years.