Israeli Prime Minister Naftali Bennett attends the weekly cabinet meeting at the prime minister’s office in Jerusalem August 1, 2021. Abir Sultan/Pool via REUTERS

Israel said on Friday it had appointed its president’s brother, former general Michael Herzog, as its next ambassador to the United States, highlighting his experience on Iran and its nuclear program.

Tehran is currently negotiating with Washington and other world powers on reviving a 2015 deal that curbed the Islamic Republic’s nuclear work in exchange for the lifting of international sanctions.

The government of Israeli Prime Minister Naftali Bennett has warned against a return to the pact, whose caps on projects with bomb-making potential Israel deems too lax.

Israel sees Iran‘s nuclear program as a direct threat, though Tehran has said it is only interested in energy generation and other peaceful projects.

Michael Herzog, 69, served in the Israeli military for 40 years, was chief of staff to four defense ministers and took part in many rounds of peace talks with the Palestinians, a statement from Bennett’s office said.

It pointed to Herzog’s “in-depth knowledge of the strategic issues facing Israel, especially the Iranian nuclear program.” His appointment will be approved by the government soon, it added.

The former general’s brother, Israeli President Isaac Herzog, was sworn in to the largely-ceremonial position in July.

Former US President Donald Trump left the nuclear deal and reimposed U.S. sanctions — a move that was hailed by Bennett’s predecessor, Benjamin Netanyahu, and prompted Iran to respond by violating many of its curbs.

Iranian and Western officials have said significant gaps remain in the revival talks and have yet to announce when negotiations, whose last round ended on June 20, will resume.

Israeli and Western tensions with Iran have simmered after a suspected drone attack last week on an Israeli-managed tanker off the Omani coast that killed two crew members.

The United States, Israel and Britain blamed the incident on Iran. Tehran has denied responsibility, and warned it would respond promptly to any threat to its security.

Tensions have also flared between Israel and Lebanon’s Iran-backed Hezbollah movement, which fired rockets towards Israeli forces on Friday, drawing retaliatory Israeli fire.