The US military launched retaliatory air strikes against Iranian forces and Tehran-backed militia groups in both Iraq and Syria on Friday, following a drone attack that killed three American soldiers at a remote base in Jordan.

The United States blamed the Sunday drone attack on Iran-backed forces but did not strike the country’s territory in response, with Washington seeking to deter future attacks while stopping short of all-out war with Tehran — something both sides have sought to avoid.

“Our response began today. It will continue at times and places of our choosing,” US President Joe Biden said in a statement.

“The United States does not seek conflict in the Middle East or anywhere else in the world. But let all those who might seek to do us harm know this: If you harm an American, we will respond,” he added.

The strikes targeted the Islamic Revolutionary Guard Corps Quds Force as well as “affiliated militia groups,” with American forces hitting “more than 85 targets, with numerous aircraft to include long-range bombers flown from United States,” the US Central Command (CENTCOM) said in a statement.