Following the U.S.-launched 2003 invasion of Iraq, the situation deteriorated, and by 2007, the intercommunal violence between Iraqi Sunni and Shi'a factions was described by the National Intelligence Estimate as having elements of a civil war. In a 10 January 2007 address to the American people, President George W. Bush stated that "80% of Iraq's sectarian violence occurs within of the capital. This violence is splitting Baghdad into sectarian enclaves, and shaking the confidence of all Iraqis." Two polls of Americans conducted in 2006 found that between 65% to 85% believed Iraq was in a civil war; however, a similar poll of Iraqis conducted in 2007 found that 61% did not believe that they were in a civil war.