You see your colleagues blown up . U.S.-led invasion of Iraq began on Six years later . March 19 , 2003 , fledgling democracy taking hold , security situation improving . But U.S. lost more than 4,000 troops ; more than 4,000 Americans have died . Polls show many Iraqis more focused on economy than lingering Iraq war .
U.S.-led invasion of Iraq began on Six years later . March 19 , 2003 , fledgling democracy taking hold , security situation improving . But U.S. lost more than 4,000 troops ; more than 4,000 Americans have died . Polls show many Iraqis more focused on economy than lingering Iraq war .