The US bombed targets in eastern Syria near the Iraqi border on Thursday. According to the UK-based Syrian Observatory for Human Rights, at least 22 members of the Popular Mobilization Forces (PMF) were killed in the strikes, although the number is unconfirmed. An Iraqi militia source told Reuters that at least one person was killed in the bombing. The PMF is a group of mostly Shia Iraqi state-sponsored militias that formed in 2014 to fight ISIS.
The US framed the bombing as "defensive," blaming the groups they targeted for recent rocket attacks on US bases in Iraq, but no evidence has been presented to substantiate the claim. Earlier this month, rockets hit a US base in Erbil, the capital of Iraqi Kurdistan, killing one contractor.