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Russian President Vladimir Putin receives military honours during the welcoming ceremony at Planalto Palace in Brasilia on July 14, 2014. Putin is in Brazil to attend the BRICS summit. AFP PHOTO/EVARISTO SA        (Photo credit should read EVARISTO SA/AFP/Getty Images)
Russian President Vladimir Putin receives military honours during the welcoming ceremony at Planalto Palace in Brasilia on July 14, 2014. Putin is in Brazil to attend the BRICS summit. AFP PHOTO/EVARISTO SA        (Photo credit should read EVARISTO SA/AFP/Getty Images)

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    Russia's Vladimir Putin ramps up military presence

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Russia's Vladimir Putin ramps up military presence

U.S. and NATO officials say they are monitoring Russia's military buildup to assess it's impact on security. CNN's Brian Todd reports.

Russia's Vladimir Putin ramps up military presence

U.S. and NATO officials say they are monitoring Russia's military buildup to assess it's impact on security. CNN's Brian Todd reports.