Secretary of State John Kerry flies over Afghanistan on Oct. 11. He met with President Hamid Karzai to work out an agreement on U.S. presence in the country. Jacquelyn Martin/AFP/Getty Images hide caption

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Iranian Foreign Minister Mohammad Javad Zarif speaks during a news conference earlier this month. Ahmad Al-Rubaye/AFP/Getty Images hide caption

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A Free Syrian Army fighter looks through the scope of his sniper rifle at an area controlled by forces loyal to President Bashar Assad in Aleppo. Reuters/Landov hide caption

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A Free Syrian Army fighter in eastern Syria on Wednesday. /Reuters/Landov hide caption

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Secretary of State John Kerry on Tuesday as he testified before the House Armed Services Committee. Chip Somodevilla/Getty Images hide caption

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Syrian Foreign Minister Walid al-Moualem (left) and Russian Foreign Minister Sergey Lavrov in Moscow on Monday. Yuri Kadobnov /AFP/Getty Images hide caption

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As Secretary of State John Kerry spoke to the House Foreign Affairs Committee on Wednesday, "Code Pink" protesters behind him held up "bloody hands" to express their opposition to the prospect of U.S. military strikes on Syria. Jim Watson /AFP/Getty Images hide caption

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Secretary of State John Kerry leaves the West Wing of the White House with chief negotiators, Israeli Justice Minister Tzipi Livni (back to camera), Palestinian negotiator Saeb Erekat (right) and others, after a meeting with President Obama on Tuesday. Brendan Smialowski /AFP/Getty Images hide caption

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Secretary of State John Kerry meets with Palestinian President Mahmoud Abbas in Ramallah, West Bank, on Friday. Shortly afterward, Kerry announced a "basis" for the Israelis and Palestinians to resume peace negotiations. Fadi Arouri/Pool/Getty Images hide caption

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British Prime Minister David Cameron (left) and Russian President Vladimir Putin viewed the Sochi Olympic Park along the Black Sea coast by helicopter Friday. Nikolsky Alexei /ITAR-TASS /Landov hide caption

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