President Obama now wants to keep 10,000 troops in Afghanistan through 2016. Here's a look back at the longest conflict in U.S. history.
Sept. 11, 2001 -- Al-Qaeda operatives hijack four commercial airliners, flying two into New York's World Trade Center and a third into the Pentagon. A fourth plane crashes in a field near the town of Shanksville, Pa., after passengers storm the cockpit. Nearly 3,000 people die in the attacks.
Prince George, who is third in line to the British throne, celebrates his…
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