BEIRUT, Lebanon — The head of Hezbollah warned on Friday that if the US went to war with Iran the whole Middle East would “erupt,” and Israel and Saudi Arabia would suffer.

“All American forces and interests in the region will be annihilated, and Israel and Saudi Arabia will pay the price,” Hassan Nasrallah said.

US President Donald Trump, “his administration, and his intelligence know well that any war on Iran will not remain confined to Iran’s borders,” the head of the Iran-backed terrorist group said in a televised speech. “Any war on Iran will mean the whole region will erupt.”

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Nasrallah warned that Hezbollah was a force to reckon with, and said that Israel was vulnerable.

“We have precision missiles in Lebanon, and enough to be able to change the face of the region,” he said.

“Israel is strong but is now at its weakest point. The Zionist entity is afraid of missiles from Gaza, Lebanon, Syria, Iran and Iraq,” he said. “They’re suffering from ruptures in all areas and lacking in leadership.”

Nasrallah on Friday also slammed a proposed US peace deal to end the Israeli-Palestinian conflict that Trump has dubbed “the deal of the century.”

“It’s a void deal… a historic crime,” he said of the plan, which has already been rejected by the Palestinians.

“This deal is a loss of Palestinian, Arab, and Islamic rights,” Nasrallah said.

Hezbollah is listed as a terrorist group by the United States.

Thousands of Iranians joined annual rallies in support of the Palestinians on Friday, also rejecting the US peace plan.

Trump’s son-in-law Jared Kushner has been drafting the long-awaited peace plan, the economic aspects of which are to be presented at a conference in Bahrain next month.

The United Nations earlier on Friday said it would not be taking part in that meeting on June 25 and 26 in Manama.

In December 2017, Trump broke with decades of bipartisan policy to recognize Jerusalem as Israel’s capital in a move that prompted the Palestinians to cut all contacts with his administration.

Israel insists the whole of Jerusalem is its “eternal, indivisible capital.” The Palestinians demand the city’s eastern sector as the capital of their long promised state.