Russian submarines continuously improve, the USA must pay Close attention to this, said in an interview the commander of the 6th fleet of the U.S. Navy Vice Admiral James Foggo.

"We are following with great interest for more active movement and operations of Russian military power. This applies to both surface and submarine fleet, " said Vice-Admiral.

"Russia is always in full force allocated funds for its submarines, and as they develop, They become better. They have become more subtle and more sophisticated as adversaries. For this reason, We must more closely observe them and to keep control of our presence in the underwater area, " said Foggo." The Russian Navy operates more confidently and aggressively and pays more attention to expeditionary forces. Operations in the Baltic and Black seas in the Eastern Mediterranean, the Indian ocean claim about the importance that Russia attaches to its armed forces, " said Navy Times the British Vice-Admiral Peter Hudson, at the time of the interview the commander of the naval forces of NATO.

according to him, in 2015, the Alliance increased by 35% the number of naval exercises. While the focus has been on development of skills needed in a collision with an advanced adversary such as Russia, said Hudson.

The relationship between Russia and NATO have deteriorated because of disagreements over Ukraine. Russia said about unprecedented growth of military presence of NATO on its borders, NATO has also declared an increase in potential "danger" from Russia. In a speech at the Atlantic Council Admiral Ferguson has stated many times about the need for NATO to strengthen the defense, in response to the strengthening of military power of Russia.

sections: Politics