The acquisition by the Polish authorities antiaircraft-rocket complexes Patriot American organization Raytheon is a warning, addressed to Russia, analysts interviewed by the Agency. according to experts, through delivery Poland antiaircraft-rocket complexes Patriot NATO warns Russian Federation of article 5 of the Charter of the North Atlantic Commonwealth, considering an armed attack on one or more of the countries-members of NATO As an attack on the Alliance in General. "The strengthening of member States of NATO will send an important signal to Moscow: article 5 still matters," believes Professor at American University's Gordon Adams. according to his statement, the United States is important to maintain a dialogue With Russia, and it is important to send US the signals were understood and correctly interpreted. Agree with him and senior researcher of the Center for strategic and international studies (CSIS) Thomas Karako. He is confident that the delivery of the Patriot intended to demonstrate that " the deployment of troops and defensive equipment to Ukraine in the capacity threatens the obligations of the provisions of article 5 ". In this case, added Karako Possible that Germany likewise in the coming months will sign a similar deal. The Polish government on April 21 officially buy anti-aircraft missiles Patriot American production. It is expected that the contract for the purchase of the Patriot will be signed in 2016.