The Arab Spring: One Year Later A year ago, the people of Tunisia and Egypt rose up against their autocratic rulers and forced them from power. Those revolutions spread across the Arab World, leading to the region's biggest upheaval in decades. It's still not clear how these seismic changes will play out; so far, the results have been mixed.

Turkish Prime Minister Recep Tayyip Erdogan (right) has been enthusiastically received by Arab Spring countries that look to Turkey as a potential model. Here, Erdogan hosts Mustafa Abdul Jalil, chairman of the National Transitional Council of Libya, in Istanbul, last month. Mustafa Ozer/AFP/Getty Images hide caption

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Mustafa Ozer/AFP/Getty Images

The Turkish Model: Can It Be Replicated?

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Bahrain is the one Arab country where the government has suppressed a major uprising. Here, protesters wave flags at the Pearl Roundabout in the capital Manama on Feb. 20, 2011, when the demonstrations were at their peak. John Moore/Getty Images hide caption

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Bahrain: The Revolution That Wasn't

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Syria's embattled President Bashar Assad still has supporters, particularly among his fellow Alawites, a minority who believe they will suffer if Assad is ousted. Here, Assad supporters rally Tuesday in the capital, Damascus. SANA handout/EPA /Landov hide caption

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SANA handout/EPA /Landov

Syrian Uprising Raises The Specter Of Sectarian War

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A rebel fighter stands on a monument inside Moammar Gadhafi's main compound in Tripoli. Sergey Ponomarev/AP hide caption

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Sergey Ponomarev/AP

In Post-Gadhafi Libya, Islamists Start To Rise

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Egypt is holding parliamentary elections, but the military remains the most powerful force in the country. Here, election officials take away ballot boxes from a polling station in Cairo on Nov. 29, 2011. Odd Andersen/AFP/Getty Images hide caption

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Odd Andersen/AFP/Getty Images

Egypt, Tunisia Try To Turn Elections Into Democracy

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Egyptian anti-government protesters celebrate at Tahrir Square in Cairo on February 11, 2011 after President Hosni Mubarak stepped down after three decades of autocratic rule and handed power to a junta of senior military commanders. Pedro Ugarte/AFP/Getty Images hide caption

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Pedro Ugarte/AFP/Getty Images