Two mortar rounds hit the Iraqi capital’s Green Zone Saturday and two rockets slammed into a base housing US troops, security sources said, a day after a deadly American strike. The precision drone strike outside the Baghdad airport on Friday killed Iranian commander Qasem Soleimani, top Iraqi paramilitary chief Abu Mahdi al-Muhandis and a clutch of other Iranian and Iraqi figures. In Baghdad, mortar rounds on Saturday evening hit the Green Zone, the high-security enclave where the US embassy is based, security sources said. The Iraqi military said that one projectile hit inside the zone, while another landed close to