However, the deal is already facing criticism in Israel and the United States.

When news of the deal emerged on Wednesday, some Israeli politicians argued that Saudi Arabia could become a new nuclear threat in the region. Israel is widely believed to have nuclear weapons, although it has not publicly acknowledged this, and joined the US war against Iran over shared concerns about Tehran’s nuclear program.

“A civil nuclear program in Saudi Arabia [will] will lead to a crazy arms race throughout the Middle East,” Avigdor Lieberman, a member of the Israeli parliament and former defense minister, said in a social media post.

Democratic lawmakers in Congress expressed similar concerns.

“The deal really is a concession to the Saudis, and it will only fuel more of Iran’s ambitions. It will only further destabilize the region with Israel,” Democratic Congressman Ro Khanna of California told the BBC. “It’s just not smart policy.”

US Energy Secretary Chris Wright said the deal would boost the US economy and strengthen national security. Wright also said in a statement posted on social media that the US-Saudi pact would “maintain the highest standards of nuclear security and nonproliferation.”

But the administration fueled skepticism about the deal by not immediately releasing more information about it on Wednesday. And perhaps in a telling sign, Trump did not preside over the signing ceremony that made the deal official.

Trump attended the dignified transfer ceremony for four US service members who died in Iran, before holding a rally in Georgia where he argued that his policies were making the Middle East more stable than ever.