The United States thinks that Iran and its friends, like Hezbollah, are still planning on hurting Israel.
Hezbollah, a group from Lebanon, fired lots of rockets and drones at Israel over the weekend.
The US is helping Israel to stay safe and has sent some big ships to the area.
Iran is angry because some of its important people were hurt in Tehran and Beirut, and they think Israel might have something to do with it.
