The Iraq War in 50 images

The Iraq War (2003-2011) began with the American-led invasion that toppled the government of Saddam Hussein in the search for weapons of mass destruction. Part of then-U.S. President George W. Bush's "War on Terror" after 9/11, the protracted armed conflict threw Iraq into chaos. Here is a look back at some moments, as we mark the 15th anniversary of the beginning of the war. 

(Pictured) U.S. Marines in northern Kuwait prepare to cross the Iraqi border on March 20, 2003.