A NATO official, who chose not to give his name, told the Bulgarian Radio Liberty news agency that Russian military aircraft activity in the Black Sea and other parts of Europe has grown since 2014.
"In 2019, allied aircraft flew up to the sky 290 times to accompany or block Russian military aircraft throughout Europe," NATO representative said.
"They do this regularly. They check our capabilities and want to see how we will react, how quickly we will send planes and our radars will see them," Bulgarian Defense Minister Krasimir Karakachanov commented on the situation.
As we reported before, Russia's Deputy Minister of Foreign Affairs Alexander Grushko stated that the withdrawal of the United States from the Open Skies treaty would affect the interests of all of its participants, who are also members of NATO
"Russia has not violated the treaty and nothing prevents the continuation of talks on technical issues that the U.S. says are the violations by the Russian side," he said.