Israel expanded its military campaign in Lebanon by targeting Hamas and Jamaa Islamiya leaders while ground forces entered eastern regions near the Syrian border.Tens of thousands of civilians are fleeing to Syria following massive airstrikes and evacuation orders in the Bekaa Valley and southern villages.Hezbollah initiated rocket attacks on March 2 after the assassination of Ali Khamenei prompting Israeli retaliatory strikes that have displaced over three hundred thousand people.The United Nations warned of a humanitarian catastrophe while aid organizations provided medical services to families in the city of Sidon.