The US military struck a site in Syria used by two Iranian-backed militia groups in response to rocket attacks on American forces in the region in the past two weeks. “Up to a handful” of militants were killed in the strikes, a US official told CNN. The strikes, which mark the US military’s first known action under President Joe Biden, swiftly drew criticism from a Democratic lawmaker. The site was not specifically tied to the rocket attacks but Secretary of Defense Lloyd Austin said he was “confident” it was used by the same Iranian-backed Shia militias that had fired rockets at US and coalition forces.