The US State Department defends Israel's airstrike on Hezbollah in Lebanon's Beirut, stating that Israel was responding to rocket attacks and that it is the responsibility of the Lebanese government to disarm terrorist groups like Hezbollah. The airstrike targeted a building in a Hezbollah stronghold and was the most serious test of the ceasefire since it was struck in November. Israel's actions are seen as a defense of its people and interests.