"If they're deployed to seal the border and stop the flow of weapons and fighters that would be a positive step. But that's not what we're seeing," the Secretary General of NATO said, answering a question of journalists at British non-governmental organization Chatham House, Censor.NET reports citing BBC-Ukraine.
" So the international community would have to respond firmly if Russia were to intervene further to isolate Russia. That would imply deeper economic sanctions which would have a negative impact on Russia. NATO has to focus on more effective protection of our partners"
In May a large number of Russian servicemen was spotted at the Ukrainian-Russian border. After the pressure from the U.S. and NATO, Russian troops were pulled back.