It has been 10 years since U.S.-led forces took control of Baghdad, signaling the eventual fall of Iraqi leader Saddam Hussein.
The event is remembered the world over for the images of Iraqis pulling down a statue of Saddam in a central Baghdad square.
The anniversary comes at a key moment in Iraq.
In less than two weeks, the country will hold its first local elections since the withdrawal of U.S. combat forces at the end of 2011.
But a decade after the U.S.-led invasion, Iraq is still struggling with political instability and violence that in recent weeks has killed at least 10 candidates who had planned to run in those elections.