The Revolutionary Guards commander instructed his top ally in Iraq, Abu Mahdi al-Muhandis, and other powerful militia leaders to step up attacks on U.S. targets in the country using sophisticated new weapons provided by Iran, two militia commanders and two security sources briefed on the gathering told Reuters. The strategy session, which has not been previously reported, came as mass protests against Iran’s growing influence in Iraq were gaining momentum, putting the Islamic Republic in an unwelcome spotlight.