Israel is on high alert for the possibility of any US intervention in Iran as authorities there confront the biggest anti-government protests in years, three Israeli sources with knowledge of the matter tell Reuters. US President Donald Trump has repeatedly threatened to intervene in recent days and warned Iran’s rulers against using force against demonstrators. Yesterday, Trump said the US stands “ready to help.” The death toll in the protests has exceeded 100, activists have said. The sources, who were present for Israeli security consultations over the weekend, did not elaborate on what Israel’s high-alert footing meant in practice. Israel and Iran fought a 12-day war in June, and the US struck Iran’s nuclear facilities in the war’s final days.