Operation Iraqi Freedom, also known as the Second Gulf War started in March 2003. The main goal of the Operation was to remove Saddam Hussein from power, which was accomplished in 2003, although, U.S. troops are still being deployed to Iraq and the Middle East. The U.S. Army and Coalition forces were responsible for the toppling of the Hussein regime as well as for establishing stability in the region when possible.
On 1 September 2010 Operation Iraqi Freedom officially became known as Operation New Dawn. During Operation New Dawn, the US Army had six advisory and assistance brigades (ABBs) in Iraq. The ABBs partnered with Iraqi Security Forces to assist with operations. The ABBs provided security for the Provincial Reconstruction Teams and provided advising and security teams as well as training missions. These ABBs were designed for stability operations, not combat, although if necessary they were authorized to take any necessary action needed to protect themselves and the Iraqi Security Forces.
The ABBs and US military forces consisted of approximately 50,000. The forces were scheduled to leave Iraq by the end of 2011.