Fear of an escalation of the conflict moderates US retaliation against pro-Iran militias in Syria and Iraq. The attacks cause more than 30 deaths, according to the governments of both countries.

The targets have instead been “command and control operations centers, intelligence centers, rockets and missiles, unmanned aerial vehicle warehouses, and ammunition supply chain and logistics facilities,” according to Centcom. CNN analyst Nick Paton Walsh calls this first strike a “comparatively limited” response to the worst loss of American life in the region in nearly three years.