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According to the United Nations, the Taliban were responsible for 76% of civilian casualties in Afghanistan in 2009, 75% in 2010 and 80% in 2011.[101][102]

According to Human Rights Watch, the Taliban's bombings and other attacks which have led to civilian casualties "sharply escalated in 2006" when "at least 669 Afghan civilians were killed in at least 350 armed attacks, most of which appear to have been intentionally launched at non-combatants."[103][104] By 2008, the Taliban had increased its use of suicide bombers and targeted unarmed civilian aid workers, such as Gayle Williams.[105]

The United Nations reported that the number of civilians killed by both the Taliban and pro-government forces in the war rose nearly 50% between 2007 and 2009.[106] The high number of civilians killed by the Taliban is blamed in part on their increasing use of improvised explosive devices (IEDs), "for instance, 16 IEDs have been planted in girls' schools" by the Taliban.[106]

http://en.wikipedia.org/wiki/Civilian_casualties_in_the_War_in_Afghanistan_(2001%E2%80%93present)