New Delhi, April 9 -- US President Donald Trump on Thursday (local time) said he was "very optimistic" that a peace deal with Iran was within reach, as a diplomatic delegation led by Vice President JD Vance was preparing to leave for Pakistan for the upcoming high-stakes talks aimed at ending the conflict.

Speaking to NBC, Trump said that leaders of the Islamic Republic "talk much differently when you're at a meeting than they do to the press. They're much more reasonable," and added, "They're agreeing to all the things that they have to agree to. Remember, they've been conquered. They have no military."

Elaborating further, the US President noted that if Tehran does not agree to a deal, it is going to be "very painful" for them.

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