Global leaders called for calm on Saturday following Israel’s retaliatory attacks on military sites across Iran, as Israel and Hezbollah exchanged renewed fire across the Lebanese border. Israel launched a widely-anticipated attack on Iran early on Saturday, during which it said it conducted “precise strikes” on military targets. Iranian state news agency IRNA said that four soldiers were killed in the attack while defending Iranian airspace, after earlier reports of two casualties. The targets in Saturday’s attacks – which came weeks after Tehran launched almost 200 ballistic missiles at Isra…