.Mr. Yusuf ,I didn't say the U.S. will start using tactical nukes unprovoked. First I said in post 15 that ' If the situation deteriorates ' the U.S. might enforce a naval blockade on the Pakistani ports .This itself would bring pakis to its knees.Mr. Ray responded for the above comment in post 18 and I replied to his post that only if the pakis stupidly or by mistake try to pre empt an attack on U.S. a/c .,I said they will use tactical nukes.No one attacks U.S. and gets way with it. If Pakistan is not a nuclear weapon state then they might use conventional force but Pakistan as nuclear weapons so if it comes to an attack on Pakistan ,the U.S. will use tactical nukes to nullify Pakistan from retaliating with nukes and its military's fighting capability.The U.S. will not use a nuclear bomb since it would cause more civilian destruction .Hence I said they might use small and precision tactical nukes.I hve also acknowledged that in this scenario couple of nukes can escape the U.S. and Indian air defenses and might hit India.