President Trump sent an all-caps warning to Iranian President Hassan Rouhani on Sunday, threatening "consequences the likes of which few throughout history have ever suffered before."

"To Iranian President Rouhani: NEVER, EVER THREATEN THE UNITED STATES AGAIN OR YOU WILL SUFFER CONSEQUENCES THE LIKES OF WHICH FEW THROUGHOUT HISTORY HAVE EVER SUFFERED BEFORE. WE ARE NO LONGER A COUNTRY THAT WILL STAND FOR YOUR DEMENTED WORDS OF VIOLENCE & DEATH. BE CAUTIOUS!" Trump tweeted.



To Iranian President Rouhani: NEVER, EVER THREATEN THE UNITED STATES AGAIN OR YOU WILL SUFFER CONSEQUENCES THE LIKES OF WHICH FEW THROUGHOUT HISTORY HAVE EVER SUFFERED BEFORE. WE ARE NO LONGER A COUNTRY THAT WILL STAND FOR YOUR DEMENTED WORDS OF VIOLENCE & DEATH. BE CAUTIOUS! — Donald J. Trump (@realDonaldTrump) July 23, 2018



The tweet came after Rouhani issued a warning to Trump about the possibility of "the mother of all wars."

In a speech to Iranian diplomats Sunday, Rouhani cautioned Trump to steer clear of pursuing hostile policies against Iran; his regime faces renewed economic sanctions pursuant to Trump's decision to withdraw the United States from the 2015 nuclear deal. “Mr Trump, don’t play with the lion’s tail, this would only lead to regret,” Rouhani said, the state new agency IRNA reported, according to Reuters.

“America should know that peace with Iran is the mother of all peace, and war with Iran is the mother of all wars,” Rouhani said. “You are not in a position to incite the Iranian nation against Iran’s security and interests."

Trump's tweet also followed a speech delivered by his secretary of state, Mike Pompeo, who said Trump plans to help set the conditions for a successful revolution by the Iranian people against the Islamic Republic.

“There are times when things happen that are unexpected, unanticipated; our revolution would be one of them,” Pompeo said Sunday night at the Ronald Reagan Library in Simi Valley, Calif., to a gathering of Iranian-Americans.

“We don't know the right moment, we don't know the day,” he continued, “but we do know the things that the world is obligated to do, so that when the right time comes — when the right moment comes — the opportunity is even more likely to find it's fulfillment.”

U.S. officials told Reuters said the Trump administration has engaged in a campaign to stir unrest against the Iranian regime through speeches and online communications.