"Today we are in a situation where we have to prepare the country's mind that it may be a possibility in future that we may have to go to war. We have been at war with Pakistan four times already, it is not an unusual event," Swamy said at a conference titled 'India and Pakistan: A Subcontinental Affair' organised by the students of New York University here.
Swamy said while war is no solution, the Narendra Modi government will not tolerate terrorism and "if it comes we will retaliate by means that are available to us".
"The mood of the country that I see over the years is only getting hardened and it reflects itself in places where many people would think we shouldn't be really stepping in, for example on (Pak) artists not coming (in india). But that is the mood in the country that they dont want any dilution of our attitude to Pakistan at this present moment.
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Swamy added that no one should normally object to culture and arts in a political warfare but given the current situation between India and Pakistan, where "we are not in a war-like situation but (there is) a possibility of war by miscalculation. Therefore we have to be prepared."
Swamy was heckled by a student at the conference when he made the remark that after the Mosul attack by American support forces, many ISIS members were now thinking of taking sanctuary in Pakistan.
Swamy said unless the political authority begins to assert itself in Pakistanto discipline its army, to discipline its ISI and put an end to all the terrorists living freely in Pakistan, "I think it will be impossible for any government of India to have a dialogue on wide ranging items".
in Pakistan because they don't have any weight, they are unable to implement any decision,"he said.
"We cannot have any dialogue with Nawaz Sharif because we consider him a dummy Prime Minister who cannot implement anything," he said, adding that India tried for the past two and half years and Prime Minister Narendra Modi has gone out of his way to normalise relations with Pakistan.
"None of these gestures have had any effect and terrorism has continued across the border," he said.
Swamy added that after the Uri attack, "our government will give proactive responses to any cross border (terror) attack on us."
He added that if the Muslim community has accepted the Uniform Criminal Code, why it should not accept the Uniform Civil Code.
Swamy said the UN resolutions on Kashmir have no legality and he is urging the Indian government to write to the UN to say the resolutions be treated as null and void.