War Secretary Pete Hegseth said the U.S. military was in a position to restart operations against Iran “if we need to,” shortly after President Donald Trump signed the memorandum of understanding in Versailles, France.

Speaking to reporters on the tarmac before departing from Brussels, Belgium, Hegseth indicated that, though the MOU sought to end the war with Iran, the U.S. was also prepared to launch renewed strikes if Tehran was not seen as having fulfilled its commitments under the deal.