By the end of 2010, the tenth year of the U.S. Middle East war, U.S. forces had suffered 1,358 casualties in Afghanistan. In 2010 alone, 497 casualties were reported. According to CRS, of the 2,42l civilians killed in Afghanistan in 2010:
more than 60 percent were killed by anti-government elements, which include the Taliban and other individuals or groups who engage in armed conflict with the government of Afghanistan or members of the International Military Forces. Pro-government forces caused 21% of the total civilian deaths.