Incorrect! Your Nasr or whatever you call it will not change the Cold Start doctrine. The tactical nuke you mention if ever used against Indian Forces will be met by massive Indian retaliation not just on the battlefield but nuking all your cities of which there are not many (9 to be precise). 9 Hiroshimas within the hour! Won’t look good at all!
So don’t even think of this scenario. Escalation to nuclear war is a bad idea. And I’m sure the powers that be in Pakistan fully understand the implications of using this tactical nuke against mobile combat groups penetrating deep inside Pakistan. In other words it’s both a dangerous and stupid idea to be the first to use ANY nuke even in a limited war. And remember, you'll be using your tactical nukes within YOUR OWN territory!
Unfortunately it looks like you do not understand the geopolitics of the region as can be seen by your simplistic assessment. Firstly, the US of A isn’t just going to desert Afghanistan completely. There would be stationed at least 40,000 American troops for years. Any attempt by Pakistan to install the Taliban there will come a cropper. They would never allow anything that will go against their national security interests.
Secondly, the confusion is going to be confounded by the influence of the CIS Republics, Shia Iran, China, and the ‘Northern Alliance’ supported by India, Russia and Iran and the many local tribes including Tajiks, Pashtuns, Hazaras, Uzbeks, Turkmen and others. Pakistan would be a bit player trying to prop up a pliable Taliban regime so that it achieves its doctrine of ‘Strategic Depth’ against India.
And then what would happen to Pakistan's economy without those billions of dollars that the US of A is dishing out on a platter? There'll be no more free lunches from 2014 onwards! By which time Pakistani Forces would in all likelihood be still fighting a counter insurgency war with the TTP, further putting pressure on the economy. So it's not going to be party time once the ISAF withdraws from Afghanistan!
Now do you see the big game in Afghanistan? It's not just about Pakistan and the Taliban!
A lot of effort on your part to respond to a tongue in cheek comments. Just a fool who have taken the western media's misinformation hook line and sinker and have no sense of the ground reality and will not know about it until it bites in ths A$$. You know any conventional attack from India will sooner or later escalate to a nuclear war Nasr will just be a warning shot and it will be Pakistan who will be first to take out your cities and hell with the conequences. Our approach is simple we are willing to go down and will take you with us almost like a suicide bomber at a country level. As far a Afganistan is concerned Taliban are nothing but Pushtuns on steroids representing 50% of the total population of Afghanistan and Americans know they cannot win in Afghanistan without talking to the Talibans and they are doing so. As far as Pakistan is concerned 500 hundred containers and Tankers are moving through Pakistan to support ISAF every day. They can talk about alternate routes but they are none, they know that and we know that. So go do your ram ram and don't waste time and band width on a Pakistani site.