The USS Barry launches a Tomahawk missile, targeting radar and anti-aircraft sites along Libya's Mediterranean coast on Saturday. U.S. Navy/Getty Images hide caption

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Children holding portraits of Moammar Gadhafi demonstrate outside the U.N. mission headquarters in Tripoli on Thursday. Libyan state-run television said that forces loyal to Gadhafi had wrested control of Misrata, one of the last rebel-held bastion, and were "purging" it of insurgents. Mahmud Turkia/AFP/Getty Images hide caption

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Libyan Leader Moammar Gadhafi arrives at a hotel to give television interviews in Tripoli, Libya, on Tuesday. Ben Curtis/AP hide caption

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Libyan leader Moammar Gadhafi, shown in a 2008 file photo, has created an incredibly centralized state, with all decisions going through him, says Frederic Wehrey, a senior policy analyst at the RAND Corp. Sergei Grits/AP hide caption

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Egyptians stage a sit-in after the army ordered their encampments torn down in Tahrir Square on Sunday. John Moore/Getty Images hide caption

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Chinese President Hu Jintao speaks during a luncheon for corporate and policy leaders co-hosted by the U.S.-China Business Council and the National Committee on U.S.-China Relations in Washington on Thursday, at the end of his visit to the U.S. capital. Saul Loeb/AFP/Getty Images hide caption

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U.S. Defense Secretary Robert Gates and Gen. Xu Caihou, vice chairman of China's Central Military Commission, meet in Beijing on Tuesday. Gates is holding talks with China's political and military leaders during the visit, which comes ahead of a second summit between President Obama and China's President Hu Jintao later this month. Pool/Getty Images hide caption

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