Iraqi forces have assumed formal control of Baghdad and other cities, six years after US-led coalition forces invaded Iraq. US troops began withdrawing from the country's major cities and towns as the midnight deadline passed on Tuesday for combat troops to hand over security to Iraqi forces. "The withdrawal of American troops is completed now from all cities, after everything they sacrificed for the sake of security," said Sadiq Al-Rikabi, a senior adviser to Iraqi prime minister Nuri al-Maliki.
