Yemen's Iran-backed rebel Houthis have threatened to target any Israeli vessel in nearby Mideast waters as they demand the renewal of humanitarian aid flow into the Gaza Strip. The attacks had been on hold since a Gaza ceasefire and hostage release deal in January. The Israeli Air Force has raised its alert level due to fears of missile and drone attacks on Israel. The US Navy has not been directly threatened, and the US military has stated that it will protect its personnel, assets, and partners in the region.