Trump to Iran: You will suffer a lot
"If they do anything, they will suffer a lot," he said during a meeting with Hungarian Prime Minister Victor Urban at the White House.
"We will see what happens with Iran," he said, expecting Tehran to face "a big problem ... if something happens," and said "they will not be happy."
Trump's administration says more than a week ago that Iranian authorities or their allies in the Middle East are preparing to carry out "imminent attacks" on American interests.
It sent an aircraft carrier, a warship, a P-52 bomber and a Patriot missile battery. Foreign Minister Mike Bombo made an unannounced visit to Brussels on Monday to exchange confidential information on the matter with his European counterparts.
"We think Iran should be on the path of talks rather than threats, they have made a wrong choice by focusing on threats," US Envoy to Iran Brian Hawk said.