Iraqi forces assumed formal control of Baghdad and other cities Tuesday after American troops handed over security in urban areas in a defining step toward ending the U.S. combat role in the country.

A countdown clock broadcast on Iraqi TV ticked to zero as the midnight deadline passed for U.S. combat troops to finish their pullback to bases.

Source:
http://www.msnbc.msn.com/id/31611805/ns/world_news-conflict_in_iraq/