So what exactly is a limited war? "What is worrying me is that there are no definitions of a limited war. If you begin somewhere, you can lead it to a conventional war and escalate to a nuclear war," says P.R. Chari, director, Institute of Peace and Conflict Studies. That a desperate Pakistan, with a smaller arsenal and on the verge of defeat in a conventional war, may be inclined to press the nuclear button and go for the jugular-New Delhi-is the worst-case scenario that most put out. While political hawks urge that the proxy war be taken across the LoC, they too stay clear of advocating any sort of conventional confrontation across the international border. "We should try and raise the cost for Pakistan by pressing the LoC Pakistanwards. This would be a protracted war which need not preclude talks but just puts pressure on Pakistan," says Bharat Karnad of the Centre for Policy Research. "But the way the nuclear weapons are tasked on the Pakistan side, it would not be advisable to try any sort of crossing from the approved international border or the nuclear wire will trip," he adds.