Turkish protesters during clashes with police to mark the one-year anniversary of the Gezi Park protests on May 31, 2014 in Istanbul, Turkey. The original protest over the removal of trees to convert a downtown park into a shopping mall turned into a broader, month-long protest against the authoritarian rule of Turkish Prime Minister Recep Tayyip Erdogan, presenting the political biggest challenge to the PM and his ruling AK Party (AKP) after more than a decade in power. (Photo by Cesare Quinto/NurPhoto/Sipa USA)
