David Schenker, assistant secretary of Near Eastern Affairs, told reporters in a teleconference on Thursday that the threat to US forcesin Iraq from Iranian-backed militias "continues to be significant." Iran-backed paramilitary groups have regularly been shelling bases in Iraq that host US forces, and the area around the US embassy in Baghdad.
On Monday, three Katyusha rockets landed near a district in southern Iraq that houses workers for foreign oil companies, including US oil service company Halliburton. No casualties or damage were reported.
Last week, Trump said Iran or its proxies planned a sneak attack on US targets in Iraq, and warned they would pay a "very heavy price" but gave no details.