Why did the US fight a war in Afghanistan and why did it last so long? Back in 2001, the US was responding to the 9/11 attacks on New York and Washington, in which nearly 3,000 people were killed.

Human Rights Watch has reported on widespread and serious violations of international human rights by all sides in the ongoing civil war ... 2001 report "Massacres of Hazaras in Afghanistan").

The claims come from hundreds of pages of documents detailing evidence given to a public inquiry into alleged war crimes committed by British special forces soldiers in Afghanistan between 2010 ...