New Delhi, Aug. 20 -- US President Donald Trump on Wednesday (local time) announced that he is launching what he described as the "most crushing economic operation ever taken against any country" against Iran. In a post on Truth Social, Trump also warned that any country doing business with or helping Iran financially in any form would face ''tremendous' consequences for their actions.

"Today, I am announcing the MOST CRUSHING ECONOMIC OPERATION EVER TAKEN AGAINST ANY COUNTRY! This will be Economic Warfare and Isolation on an unprecedented scale," Trump wrote.

"I am also announcing that ANY country that allows its financial institutions, businesses, airports, or government entities to provide any type of lifeline to Iran will itself fac...