Washington: US President Donald Trump threatened that the United States would return to all-out war against Iran if it did not get everything it wanted from Tehran.

According to National Iraqi News Agency, Trump responded to a question about the possibility of resuming "all-out war against Iran," saying, "If we don't get 100% of what we want, we will certainly return."

He added, "The United States is conducting very serious negotiations with Iran, but is prepared to return to the military option if diplomatic efforts fail to achieve all of America's objectives."