The war in Kosovo and Metohia made relationships between Russia and Western Alliance (NATO) become worse. Russia, advocating the principles of international law, pointed out that NATO intervention toward FRY had been illegal. It created conditions for future interventions of this kind in the world. Besides its membership in the Partnership for Peace, Russia realized that NATO was changing its strategy from defensive toward offensive organization. The war itself was asymmetric since it was about the confrontation of extremely modern army against the small and insufficiently trained one. Regarding Russia, the war showed that NATO had not taken into account Russia's foreign policy interests in South-eastern Europe. The events happened at the Prishtina's airport 'Slatina' witnessed the ephemeral role of Russia in Kosovo crisis: Despite the fact Russian forces occupied the airport, they could not get their own sector within KFOR but they were incorporated into the American, French and German one. Russia learnt many lessons out of this war such as: non-reliability of partnership with Western Alliance, and the fact that the same alliance, encouraged by the new members from the South-eastern Europe, would not hesitate even to attack Russia. Russia was very well aware of the fact it was inferior to the alliance, and in that sense it had adopted new Military doctrine as per which it should have revised its nuclear strategy - the production of nuclear ballistic missiles and intercontinental ones called ICBU. They will be compensation for the backwardness in conventional arms. Furthermore, Russia was supposed to redesign air forces in order to perform quick reactions toward enemy's forces. The precondition of all mentioned was the reform of military sector accompanied by military forces professionalization with great mobility. Russia should insist in the future on its membership in UN, where it disposes of the right to veto, membership in OEBS and Contact group. Economic relationships should take up the first position (South Stream). Russia did not recognize self-proclaimed independence of Kosovo since it governed itself with international law and opposed to the NATO-s expansion to the East.