War_Conflict

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Medical workers lead away a pro-Western activist after clashes with pro-Russia activists in Kharkiv, Ukraine, Sunday, April 13, 2014. Two rival rallies in Kharkiv turned violent after a group of pro-Russian protesters followed several pro-Ukrainian activists, beating them with baseball bats and sticks. (AP Photo/ Olga Ivashchenko)

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In this March 20, 2014 photo, Boston Marathon bombing survivor Heather Abbott pauses while speaking with a reporter at her home in Newport, R.I. Abbott wants to be able do all the things she did before the bombing a year ago. That’s why she made the difficult decision to have her left leg amputated. Four surgeons had told her there was a good possibility she would never walk again. (AP Photo/Steven Senne)

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In this March 20, 2014 photo, Boston Marathon bombing survivor Heather Abbott speaks with a reporter at her home in Newport, R.I. A year after she lost her left leg in the bombing, Abbott said she’s determined to get back to doing the things she did before. (AP Photo/Steven Senne)

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FILE - In this April 25, 2013 file photo, Heather Abbott, of Newport, R.I., is wheeled into a news conference past members of the media at Brigham and Women's Hospital, in Boston. Abbott had her left leg amputated below the knee following injuries she sustained at the Boston Marathon bombings on April 15. Abbott wants to be able do all the things she did before the bombing. That’s why she made the difficult decision to have her left leg amputated. Four surgeons had told her there was a good possibility she would never walk again. (AP Photo/Steven Senne, File)

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In this Friday, March 14, 2014 photo, Jeff Bauman stands in his home in Carlisle, Mass. Bauman, who lost both of his legs in the Boston Marathon bombings, helped identify one of the two brothers accused of setting off the explosions, which killed three and injured more that 260 others. (AP Photo/Charles Krupa)

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In this Friday, March 14, 2014 photo, Jeff Bauman adjusts one of his prosthetic legs at his home in Carlisle, Mass. Bauman, who lost both of his legs in the Boston Marathon bombings, helped identify one of the two brothers accused of setting off the explosions, which killed three and injured more that 260 others. (AP Photo/Charles Krupa)

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In this Tuesday, March 25, 2014 photo, Carlos Arredondo embraces a family friend while walking along Centre Street in the Jamaica Plain neighborhood of Boston. Arredondo, along with volunteer Devin Wang and EMT Paul Mitchell, are credited with helping to save the life of Jeff Bauman, who suffered traumatic injuries in the Boston Marathon bombings. (AP Photo/Charles Krupa)

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In this Tuesday, March 25, 2014 photo, Carlos Arredondo stands in the Jamaica Plain neighborhood of Boston. Arredondo, along with volunteer Devin Wang and EMT Paul Mitchell, are credited with helping to save the life of Jeff Bauman, who suffered traumatic injuries in the Boston Marathon bombings. (AP Photo/Charles Krupa)