JERUSALEM — Israel’s prime minister said today that newly leaked U.S. diplomatic memos provide clear proof that the Arab world agrees with his country’s assessment that Iran is the chief danger to the Middle East.

According to the documents released Sunday by online whistle-blower WikiLeaks, King Abdullah of Saudi Arabia repeatedly urged the United States to attack Iran to destroy its nuclear program.

Israeli Prime Minister Benjamin Netanyahu has repeatedly said the threat of a nuclear-armed Iran is the greatest danger to the region. In Tel Aviv, he said the released documents proved that Israel and moderate Arab countries have far more in common than they publicly acknowledge.

“The greatest threat to world peace stems from the arming of the regime in Iran. More and more states, governments and leaders in the Middle East and in far reaches of the world understand this is a fundamental threat,” Netanyahu told a news conference.

He also suggested that a unified front against Iran could reshape the region. If “leaders will say in public what they say in private there might be a breakthrough,” he said. “Leaders should be ready to tell their people the truth.”