Chechen leader Ramzan Kadyrov (poster in top left) is a staunch supporter of Russian President Vladimir Putin, but both men have been criticized by human rights groups. Tens of thousands of people took part in a state-sponsored rally in Chechnya's capital Grozny on Jan. 22, with many holding posters of Kadyrov, Putin (right) and Kadyrov's late father, Akhmad Kadyrov (center). Ilia Varlamov/AFP/Getty Images hide caption

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Russian President Vladimir Putin (right) greets Syrian President Bashar Assad in the Kremlin in Moscow on Tuesday. It was Assad's first known trip abroad since the Syrian war broke out in 2011. To bolster Assad, Russia recently began bombing opposition groups in Syria. However, Russian efforts to help embattled leaders have often failed. Alexei Druzhinin/AP hide caption

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Police escort the suspects in the killing of Boris Nemtsov into a court house in Moscow, Russia, on Sunday. A total of five people have been arrested over the weekend in connection with the killing of the fierce opponent of President Vladimir Putin. Ivan Sekretarev/AP hide caption

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French actor Gerard Depardieu (right) chats with Chechen leader Ramzan Kadyrov shortly after his arrival in Chechnya's capital, Grozny, on Feb. 24. Musa Sadulayev/AP hide caption

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