Demonstrators carry a giant Russian flag through Kharkiv, Ukraine, earlier this month. The city's population is a blend of Ukranians and Russians, many of whom share families across the Russian border. Sergey Kozlov/AP hide caption

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Iranian Foreign Minister Mohammad Javad Zarif (right) speaks during a joint press conference with his Swedish counterpart Carl Bildt in Tehran on Tuesday. Bildt is visiting to try to bolster the temporary nuclear deal on Iran's nuclear program. Behrouz Mehri/AFP/Getty Images hide caption

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Germany's new defense minister, Ursula von der Leyen, right, chats with German soldiers who have served in Afghanistan, at a training center in Letzlingen on Jan. 28. Von der Leyen has said she would like to see German forces participate more with other European troops in foreign peacekeeping missions. Thomas Trutschel/Photothek via Getty Images hide caption

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Heinrich Himmler (left) and Adolf Hitler (third from left) observe Stormtroop maneuvers in January 1941. Keystone/Getty Images hide caption

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Kamal Hamade, the owner of the Taverna du Liban, had taken many steps to make his restaurant secure, and it was one of the few that Western agencies allowed their personnel to frequent. Rahmat Gul/AP hide caption

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German farmer Rudolf Buehler and other opponents of the Transatlantic Free Trade Agreement protest with 17 pigs in front of the chancellor's office building in Berlin on Wednesday. Soraya Sarhaddi Nelson/NPR hide caption

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