Residents report calm despite heavy troop movement.
Iraqi security forces moved deep into Sadr City today to wrest control of the vast Baghdad district from militiamen loyal to radical Shiite Muslim cleric Muqtada Sadr.
U.S. forces were playing no part in the operation, the military said.
This latest move by an all Iraqi security force is in accordance to the 'surrender' last week by al (mookie) sadr's militia to PM Maliki's Iraqi govt.