This was the year that terrorism and refugees dominated global headlines more than ever. Militants escalated their attacks from Syria to the streets of Paris, while over a million people fleeing conflicts poured into Europe. Here are some of the images which captured the top stories of 2015.
2015: The Year In Photos
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Protesters wearing masks sit in front of a fire during clashes with Turkish riot police in the Gazi district of Istanbul on July 26, 2015. (epa/Yunus Tosun)
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The shadow of a Pakistani army helicopter is seen next to land surrounded by flood water as villagers sought higher ground in the Rajanpur district, in Punjab province, on August 6, 2015. (AFP)
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A participant in the Mrs Universe 2015 contest takes a selfie as she stands close to a huge mining truck at the BelAZ plant in the town of Zhodino, near Minsk, on August 26, 2015 (AFP/Sergei Gapon)
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Dark, narrow, 100 meter-long streaks on Mars inferred to have been formed by contemporary flowing water are seen in an image produced by NASA, the Jet Propulsion Laboratory (JPL) and the University of Arizona. Scientists have found the first evidence that briny water may flow on the surface of Mars during the planet's summer months, on September 28, 2015. (NASA)