US President Joe Biden has said that if diplomacy does not resolve the Iranian nuclear crisis, America "is ready to turn to other options".
He was speaking in Washington after the first face-to-face talks with Israel's new prime minister, Naftali Bennett.
Mr Bennett praised the president's stance, and his vow to never let Iran acquire nuclear weapons.
The meeting had been delayed for 24 hours following the deadly attack by the IS group at Kabul airport.
Mr Bennett, who took office in June, had said the issue of Iran's nuclear programme would be top of the agenda in his talks with Mr Biden.
Iran considers Israel its arch-foe and lsrael views its nuclear ambitions as an existential threat. Iran says its programme is entirely peaceful but Western powers and the UN's nuclear agency say they are not convinced.