Prime Minister Benjamin Netanyahu secretly traveled to the United Arab Emirates during the U.S.-Israeli war against Iran, according to an announcement from the Prime Minister’s Office.

During the visit, Netanyahu met with UAE President Sheikh Mohammed bin Zayed, the PMO said.

“This visit led to a historic breakthrough in relations between Israel and the United Arab Emirates,” says the PMO.

Earlier in the week, senior U.S. officials confirmed that Israel deployed an Iron Dome battery along with Israeli soldiers to operate it in the UAE during the conflict with Iran.

The Wall Street Journal also reported that Mossad chief David Barnea visited the UAE at least twice throughout the war to coordinate efforts related to the conflict, citing Arab officials and a source familiar with the matter.

According to the report, Israel and the UAE additionally coordinated a strike on a major Iranian petrochemical facility.

Israel and the UAE formally normalized relations in 2020 under the Abraham Accords. Netanyahu was also reported to have made a secret trip to the UAE in 2018 for a meeting with bin Zayed.