A roadside bomb killed three American soldiers and wounded two in Baghdad.
The U.S. said the blast occurred Tuesday in east Baghdad but gave no further details.
However, a U.S. Humvee was seen burning Tuesday at an intersection in Mashtal section of eastern Baghdad.
U.S. officials believe mainstream Mahdi forces have generally stuck by the order but breakaway factions of the militia are continuing attacks.
Most EU countries are allied with US-dominated NATO - a killing machine involved in smashing one sovereign state after another. It's responsible for vast destruction, millions of casualties, and appalling human misery from the rape of Yugoslavia and post-9/11 US-led wars of aggression - based on Big Lies and deception.