Wall Street Journal | Yaroslav Trofimov: Sunni monarchies, led by Saudi Arabia, increasingly see the Jewish state as a partner in a common struggle against Shia Iran

For decades, rejection of Israel�sometimes mixed with outright anti-Semitism�has been a defining theme of Arab politics, uniting bickering countries against a common foe.

Former Egyptian President Mohammed Morsi, a Muslim Brotherhood leader who was deposed in a 2013 coup, had gone on TV three years earlier to brand Jews as �descendants of apes and pigs.� In 1988, the Palestinian militant group Hamas adopted a covenant that cited the notorious anti-Semitic forgery known as the Protocols of the Elders of Zion as proof of a global Jewish conspiracy.

But attitudes are beginning to change in some parts of the Arab world. Mohammad bin Abdul Karim al-Issa, the secretary-general of the Muslim World League, a Saudi-based global organization that has been accused of spreading extremism, recently pointed to a lesson in coexistence from Islam�s past. �The neighbor of the Prophet [Muhammad] was a Jew, and when that Jew was ill, the Prophet visited him and gave him kind words,� said Mr. al-Issa, who is also a former Saudi minister of justice. �The hard-liners don�t wish to know that.�

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