U.S. Vice President Joe Biden (L) addresses U.S. soldiers as U.S. Gen. Raymond Odierno (C), commander of the Multi-National forces in Iraq, and Command Sergeant Major Lawrence Wilson listen on during a U.S. naturalization ceremony at the Al-Faw Palace in Baghdad, July 4, 2009. Reuters Pictures logo Reuters Pictures 31 months ago

U.S. Vice President Joe Biden (L) addresses U.S. soldiers as U.S. Gen. Raymond Odierno (C), commander of the Multi-National forces in Iraq, and Command Sergeant Major Lawrence Wilson listen on during a U.S. naturalization ceremony at the Al-Faw Palace in Baghdad, July 4, 2009.