NATO is not contemplating a troop build-up in East Europe and the Baltics beyond exisiting plans as there is no imminent threat from Russia, despite fears amongst Baltic states, the alliance's military chief said on June 20.
Reuters: NATO commander sees no imminent Russian threat to Baltics
A Russian Kamov KA-27 Helix closely surveils the USS Donald Cook (DDG 75),an Arleigh Burke-class guided-missile destroyer, operating in the Baltic Sea April 12, 2016.