The+War+in+Iraq

The United States has been fighting in Iraq since March 20, 2003.
From ProCon.org:

==== "On March 20, 2003, a US-led coalition of 49 countries invaded Iraq and overthrew the government within three weeks. The rebuilding of occupied Iraq continues through 2010 although the coalition no longer exists, and over 4,000 US soldiers and hundreds of thousands of Iraqis have died. ====

==== Proponents argue that liberating the people of Iraq from Saddam Hussein’s human rights abuses, spreading democracy in the region, enforcing UN regulations, finding suspected weapons of mass destruction, and making the US safer from terrorism in a post-9/11 world, all justify the war in Iraq. ====

==== Opponents argue that Iraq had no WMDs or connection to 9/11, and that the Bush administration just wanted Iraq’s oil and any excuse to remove Saddam. They say the attack violated international law, killed countless civilians, wasted billions of dollars, and made the US less safe from terrorism." ====

*only 6 of those 49 countries remained committed to the mission as of 2009
 * Iraq is about the same size as California in terms of land area
 * According to the CIA world factbook, as of 2009 about 97% of Iraqis were Muslim, including about 65% Shi'a and 35% Sunni - Saddam Huessein was a Sunni and oppressed the Shi'a and Kurdish populations of Iraq, killing many.

Obama speech on withdrawal (6 mins)

Obama announcement of troop withdrawal (2 mins)

ABC news overview of the war and its “end” (3 mins)

U.S. troops prepping to leave (1:15)

Overview of war in Iraq - 2003-2011 (6 mins)

U.S. imperialism in the Middle East since the 1970s - critical of U.S. (5 mins)

ProCon.org Iraq War page - tons of info

Ten very interesting Facts from ProCon.org