"As President Biden has made clear, we will take all necessary measures to defend our people and will always respond at a time and place of our choosing. No group will strike our troops with impunity,

The drone strike also wounded five American service members and a second U.S. contractor, the Pentagon said, adding that Iran is thought to have been behind it and the U.S. hit Iran-linked targets.

The U.S. military carried out airstrikes in Syria after a deadly drone attack killed a U.S. contractor and injured six others, including five American service members.

The drone strike also wounded five American service members and a second U.S. contractor, Defense Secretary Lloyd Austin said, adding that Iran is thought to have been behind it.

President Joe Biden authorized the U.S. military to conduct precisions airstrikes in Syria after Iranian forces killed an American at a military base earlier in the day.

Five service members and another U.S. contractor were wounded. The Pentagon said the drone was of “Iranian origin” and ordered airstrikes on facilities in Syria used by Iran-linked groups.

A US contractor was killed when a suspected Iranian-made drone struck base in Syria’s north-east