Two U.S. troops were killed in an attack by forces backed by Iran Saturday at a Jordan base.

One soldier still missing according to officials.

Iran’s Islamic Revolutionary Guard Corps admitted carrying out the strikes that drew condemnation.

Sunday, the U.S. hit back with airstrikes on Iranian targets.

President Trump called the soldier deaths unacceptable and pledged swift action and ordered flags lowered at all military posts.

Iran said the U.S. attacks proved its warnings were ignored.

Strikes came as Iranian-backed groups keep launching assaults across the Middle East.

Midterm elections loom as campaigns heat up, raising stakes in the escalating conflict with regional implications.