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Al-Qaeda leader Osama bin Laden, responsible for the 9/11 attacks in New York and Washington, was killed by U.S. forces in Pakistan.

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The then U.S. president Obama planned to withdraw 33,000 troops by the summer of 2012—the surge troops sent in December 2009—including 10,000 by the end of 2011

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Burhanuddin Rabbani, the government’s chief negotiator, was assasinated

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The U.S. war in Afghanistan marks its tenth anniversary but serious doubts remain about the Afghan government’s capacity to secure the country

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Countries and organizations meet again in Bonn, Germany. The conference fails to achieve its objectives—to lay down a blueprint for Afghanistan's transition

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Taliban cancels talks and U.S.-Afghan tensions flare

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Afghan forces take the lead in security responsibility nationwide as NATO hands over control of the remaining ninety-five districts

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Ashraf Ghani, the newly elected president, signs a power-sharing agreement with his chief opponent, Abdullah Abdullah, who had mobilized thousands of protestors

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 US enters official negotiations with the Taliban without involving the elected Afghan government or NATO partners