The U.S. and several European countries intensified activity at the borders of the southern military district, for example, close to Crimea, said the commander of the southern military district of Russia, Colonel-General Alexander Galkin. "Using the return of the Crimea in structure of Russia as an excuse to increase military presence in the black sea region, the U.S. and several European countries have strongly increased the number of calls to the Black sea combat and intelligence of the courts," said Galkin, quoted by RIA " Novosti ". He said that the intensity and duration of activities in the Black sea military courts of the United States and France grew more than four times. In addition, since the end of 2014 over the Black sea and in the airspace of Ukraine periodically fly American strategic reconnaissance drones. So, says the commander, the U.S. is trying to put pressure on the Russian Federation." There is a strong trend bias subjects of troops in preparation for a failover deployment options and use of large multinational military forces in operations in the waters of the Mediterranean and Black seas, and equally in the Caucasus, "said the General, noting that such actions are" openly hostile ". Before the chief of the Main operations Directorate of the General staff Andrey Kartapolov said that the reconnaissance aircraft of NATO countries in 2 times increased the number of flights compared with 2013, while their routes to the maximum close to the Western borders of Russia. Remember, April 6 as part of the training of "operation Atlantic resolve" in Bulgaria and Romania practicing combat tasks performed the USS Jason Dunham. on 4 March, the Black sea became a detachment of ships of NATO under the command of U.S. rear Admiral brad Williamson, who has absorbed the cruiser Vicksburg U.S. Navy, and four frigates - canadian Fredericton, Turkish " Turgutreis ", Romanian " Regina Maria ", Aliseo Italian and tanker Spessart German Navy.