(210416) -- KABUL, April 16, 2021 (Xinhua) -- Photo taken on April 16, 2021 shows a graveyard where a number of war victims have been buried in Kabul, Afghanistan, on April 16, 2021. U.S. President Joe Biden announced Wednesday that all U.S. troops will be withdrawn from Afghanistan before Sept. 11, a decision to end the longest war in American history. Since entering Afghanistan in October 2001, the U.S. troops have caused more than 30,000 civilian deaths, injured more than 60,000 and made about 11 million people become refugees. (Photo by Rahmatullah Alizadah/Xinhua) TO GO WITH World Insights: U.S. troop withdrawal to throw Afghanistan into chaos