Washington, April 12 -- US President Donald Trump on Sunday expressed confidence that Tehran would eventually concede to American demands, while simultaneously issuing a stern warning regarding the potential for total military devastation.

Speaking to Fox News, the President suggested that Iran's return to the bargaining table is inevitable. "I predict they come back and they give us everything we want," Trump said.

Emphasising the perceived lack of leverage on the part of the Iranian leadership, he added, "I want everything... They have no cards."

The President also stood by his recent provocative rhetoric, including a threat made last week that a "whole civilization will die tonight, never to be brought back again."

He argued that s...