From the perspective of international security, the Georgia-Russian war was a restitution of the model of war to which the world prepared in the second half of the 20th century. The events of 2008 proved that in the 21st century, apart form the increasingly frequent asymmetrical conflicts, there is still a risk of the outbreak of a conventional international armed conflict. The article discusses the major geopolitical effects of the Georgian-Russian war with special emphasis on the role of NATO, the European Union, USA, Russia, Poland and Iran. The main hypothesis of the article is as follows: as a result of the conflict of August 2008 those who lost most were the Western states - the USA, the EU, NATO and Poland, proving their impotence or subjection to Russia. The effects of the conflict for Russia are prone to a twofold evaluation. On the one hand, the Kremlin strengthened its position in the Caucasus, on the other however, it lost the confidence of the public opinion in Western Europe. The greatest beneficiary of the war was Iran, as it gained time necessary for the development of its nuclear program.