US national security adviser Jake Sullivan met on December 22 with Israel’s prime minister amid the Jewish state’s opposition to efforts to revive the 2015 Iran nuclear deal, before visiting the Palestinian leader for talks.

“The US and Israeli delegations held detailed consultations on Iran, with Mr Sullivan underscoring the US administration’s determination to confront all aspects of the threat Iran poses to regional and international peace and security,” National Security Council spokesperson Emily Horne said in a statement.

“He also reaffirmed the firm commitment of the United States to ensuring Iran never gets a nuclear weapon.”

Israeli Prime Minister Naftali Bennett’s government has called for a halt to international efforts to revive the accord that saw Iran agree to limits on its nuclear activities in exchange for sanctions relief.

Bennett has accused Iran of “nuclear blackmail” and charged that revenue it gained from sanctions relief would be used to acquire weapons to harm Israelis.

“What happens in Vienna has profound ramifications for the stability of the Middle East and the security of Israel for the upcoming years,” he told Sullivan, according to a statement.

Sullivan said his visit to Israel had come at “a critical juncture”.

“It’s important that we sit together and develop a common strategy, a common outlook, and find a way forward that fundamentally secures your country’s interests and mine,” Sullivan said, according to an Israeli government statement.

Negotiations to restore the pact known as the Joint Collective Plan of Action resumed in November.

Washington was a party to the original agreement, but withdrew under then-president Donald Trump in 2018.

Iran says it only wants to develop a civil nuclear programme, but Western powers say its stocks of enriched uranium could be used to develop a nuclear weapon.

Lead US Iran negotiator Rob Malley told CNN on December 21 that there are only “some weeks” left to revive the deal if Tehran continues its nuclear activities at the current pace.

Israeli leaders have hinted at striking Iran.

Speaking on December 22 at a graduation ceremony for the Israeli Air Force, President Isaac Herzog alluded to that possibility.

“The Iranian nuclear threat must be neutralised once and for all, with or without an agreement,” Herzog said in remarks released by his office.

According to the readout of his meetings, Sullivan also praised Israel’s strengthening ties with new regional partners “and highlighted US support for the Abraham Accords”.

Under the US-brokered accords, Israel last year established diplomatic relations with the UAE, Bahrain and Morocco, with Sudan also agreeing to normalise ties.

In Ramallah, Sullivan said he met with Abbas “to highlight the US administration’s interest in strengthening engagement with the Palestinian Authority and deepening ties with the Palestinian people”.

Sullivan said he discussed with the Palestinian leader “the resumption of significant levels of economic and development assistance”.

Under Trump, the US slashed aid to Palestinians, moved the US embassy from Tel Aviv to Jerusalem and gave Israel broad licence to build settlements in the occupied West Bank, illegal under international law.

The Palestinians cut off ties with the Trump administration, accusing it of pro-Israeli bias.