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Ukrainian servicemen from the Donbass volunteer battalion on August 4, 2014 prepare for redeployment from Popasna, Lugansk region, freed by Ukrainian forces from the pro-Russian militants, to Donetsk. The deputy mayor in the encircled insurgent stronghold of Donetsk told AFP that shooting in a residential suburb had killed six civilians and injured 13, the latest victims of more than three months of civil war that has claimed at least 1,150 lives. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images
Ukrainian servicemen from the Donbass volunteer battalion on August 4, 2014 prepare for redeployment from Popasna, Lugansk region, freed by Ukrainian forces from the pro-Russian militants, to Donetsk. The deputy mayor in the encircled insurgent stronghold of Donetsk told AFP that shooting in a residential suburb had killed six civilians and injured 13, the latest victims of more than three months of civil war that has claimed at least 1,150 lives. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images

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    Ukrainian army advances against rebels

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Ukrainian army advances against rebels

The Ukrainian military appears to be making progress against pro-Russian rebels. CNN's Nick Paton Walsh reports.

Ukrainian army advances against rebels

The Ukrainian military appears to be making progress against pro-Russian rebels. CNN's Nick Paton Walsh reports.