"We view such activity as a potential threat to the security of the Russian Federation," the ministry statement said. "It was stressed that the irresponsible policy of the administration of Prime Minister F. Kishida is placing Tokyo on a path of dangerous escalation in Northeast Asia and throughout the Asia-Pacific region." Russia, the statement said, had warned of counter-measures to be taken to ensure the country's defence capability. Japan has thrown its support behind Ukraine since Russia invaded its neighbour more than two years ago.