Peskov's comments came after a joint declaration adopted at the NATO summit in Washington on Wednesday said "Ukraine's future lies in NATO."
Peskov said the coalition is "de facto fully involved in the Ukrainian conflict," Xinhua news agency reported, adding that its military infrastructure is gradually moving toward Russia's borders.
"From the very beginning we said that NATO expansion into the territory of Ukraine is an unacceptable threat to us, our existence, our security," Peskov said.
He said that the measures adopted at the summit force Russia to take appropriate steps to control this group as it could threaten the country's national security.
"This will require us to create thoughtful, coordinated and effective response measures to contain NATO," the spokesman said.
Peskov said the coalition is "de facto fully involved in the Ukrainian conflict," Xinhua news agency reported, adding that its military infrastructure is gradually moving toward Russia's borders.
"From the very beginning we said that NATO expansion into the territory of Ukraine is an unacceptable threat to us, our existence, our security," Peskov said.
He said that the measures adopted at the summit force Russia to take appropriate steps to control this group as it could threaten the country's national security.
"This will require us to create thoughtful, coordinated and effective response measures to contain NATO," the spokesman said.
