U.S. airstrikes targeting Yemen’s Houthi rebels have pounded sites across the country. The rebels say one attack Sunday in the capital killed at least two people and wounded more than a dozen others.

Israel’s military intercepted a missile launched by Yemen’s Houthi rebels early Thursday, the second to target Israel since the collapse of the Gaza ceasefire, as the United States’ intensifies airstrikes against the Iran-backed militant group.

U.S. air forces conducted strikes on Sanaa, the capital of Yemen controlled by Houthi rebels. The air raids resulted in the deaths of at least four people, with many more injured. What do you need to know?