War_Conflict

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File-This Jan. 28, 2001, file photo shows Baltimore Ravens linebacker Ray Lewis smiling on the sidelines during the fourth quarter against the New York Giants Super Bowl XXXV in Tampa, Fla. One year after being implicated in the stabbing deaths of two men in Atlanta, Lewis spent an hour deflecting questions that weren't about football. "That chapter is closed," he declared on a warm day in Tampa. (AP Photo/Doug Mills, File)

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The Smell Test: Security personnel walk with their dogs outside Fisht Olympic Stadium in Sochi on Monday. Russian President Vladimir Putin has promised security measures to keep athletes, officials and spectators safe. (Associated Press photographs)

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Marine Sgt. Lawrence Hutchins speaks Friday, Aug. 2, 2013 at his home in Oceanside, Calif., for the first time since the June 26 decision by the military’s highest court overturning his murder conviction in a major Iraq war crime case. (AP Photo/Chris Carlson)

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FILE - In this Monday, Jan. 13, 2014 file photo, South Sudanese government soldiers wait to board trucks and pickups, to head to the frontlines to reinforce other government forces already fighting rebel forces near the town of Bor, as they prepare to leave from the outskirts of Juba, South Sudan. South Sudan's government and rebels fighting against it have signed Thursday, Jan. 23, 2014 a cessation of hostilities agreement in Addis Ababa that should at the least put a pause to five weeks of warfare that has claimed thousands of lives and uprooted a half million people since fighting began Dec. 15 between the government and supporters of former Vice President Riek Machar. (AP Photo/Jake Simkin, File)