At least 44 American soldiers have been killed in Iraq in April, making it the deadliest month for U.S. forces since September.
The U.S. military said three soldiers were killed in eastern Baghdad by indirect fire, a reference to mortars or rockets. The statement did not give an exact location for the attack, but the Shiite stronghold of Sadr City has been the scene of intense fighting recently with Shiite militiamen.
A fourth U.S. soldier was killed by a shell in western Baghdad, the military said.
But they can stay there until people stop shooting at them so that there will come a time when they can stay there without people shooting at them.