President Donald Trump said the U.S. would probably strike Iran tonight following a joint news conference at the NATO summit in Ankara, Turkey [1, 2].

The warning signals a rapid collapse of diplomatic efforts and increases the immediate risk of open military conflict between the two nations.

Trump said the ceasefire with Iran was over, citing a series of tit-for-tat strikes and continued hostile actions by Tehran [3, 4]. During the press conference, the president put Iran on notice, suggesting the country would be unable to prevent the coming actions [2].

"I'll give a little warning: We're going to hit them hard tonight," Trump said [1].

This escalation comes approximately one month after the U.S. signed an interim peace deal with Iran [4]. The sudden shift in posture suggests that the terms of that agreement were either violated, or deemed insufficient, by the administration.

Trump said he intended to launch an attack, stating, "We will hit them hard tonight" [2]. The president's remarks occurred while he was attending the summit in Turkey, where NATO members are meeting to discuss regional security and alliance cooperation [1, 3].

Tehran has not yet issued a formal response to the specific threat of an overnight strike. The U.S. administration has not specified the targets or the scale of the planned military operation, though Trump said the U.S. would strike hard [1, 2].

"I'll give a little warning: We're going to hit them hard tonight."

The announcement marks a volatile pivot in U.S. foreign policy, occurring just weeks after an interim peace agreement. By announcing potential military action during a NATO summit, the U.S. is signaling to both its allies and adversaries that it is willing to abandon diplomatic frameworks rapidly in response to perceived hostilities.