A Turkish boat (in the foreground) escorts the Russian naval destroyer Smetlivy, in the Bosphorus in Istanbul, in July 2012. Murad Sezer/Reuters/Landov hide caption

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When Russia began its bombing campaign in Syria, Russian officials said it would be a short-term air operation. Since then, things have gotten messier. In his state of the nation speech Thursday, President Putin reminded Russians that it took nearly a decade to crush terrorists who staged attacks around Russia in the 1990s. He cast the fight in Syria in similar terms. Ivan Sekretarev/AP hide caption

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Russian Defence Ministry officials sit under a display showing the Turkish-Syrian border during a news conference Wednesday in Moscow. Sergei Karpukhin/Reuters /Landov hide caption

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This frame grab from video by Haberturk TV shows a Russian warplane on fire before crashing on a hill Tuesday, as seen from Turkey's Hatay province. Turkey shot down the Russian warplane Tuesday, claiming it had violated Turkish airspace. Russia denied that the plane crossed the Syrian border into Turkish skies. AP hide caption

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Russian President Vladimir Putin is shown during a meeting with Jordan's King Abdullah II in Sochi, Russia, on Tuesday. Putin said Turkey's downing of a Russian warplane was "a stab in the back." Maxim Shipenkov/AFP/Getty Images hide caption

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This frame grab from video by Haberturk TV shows a Russian warplane on fire before crashing on a hill as seen from Hatay province, Turkey, on Tuesday. Uncredited/AP hide caption

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Preeti Mistry's biriyani-stuffed pumpkin. Courtesy of Preeti Mistry hide caption

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The copper market in Trabzon's old city on the Black Sea still rings out with the sounds of coppersmiths hammering their wares. Peter Kenyon/NPR hide caption

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A Butterball turkey for sale in November 2014, in Centreville, Va. Terms like "premium" and "raised without hormones" tell you little about the quality of the turkey or how it was raised. Paul J. Richards/AFP/Getty Images hide caption

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Supporters of Turkey's President Recep Tayyip Erdogan and the Justice and Development Party (AKP), wave their party and national flags as they celebrate outside the AKP headquarters, in Istanbul. Hussein Malla/AP hide caption

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Anti-government protesters demonstrate in Istanbul near a Turkish broadcaster which was taken over by police. The company owns opposition television stations Bugun TV and Kanalturk. Lefteris Pitarakis/AP hide caption

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A young girl is among many migrants, most of them Syrian, resting at a sports stadium near Turkey's western border with Greece on Sept. 22. Turkey has taken in some 2 million Syrians fleeing war in their homeland. But Turkey rarely allows the migrants to work or receive citizenship, and many of the Syrians say they want to move on to Europe. Emrah Gurel/AP hide caption

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