The end of the Cold War represents the beginning of the period\ud
of modern research of security issues and theories of modern warfare. End of the\ud
Cold War, led to an emphasis of a large number of military-security and political\ud
issues related to the survival of the state and the region, establishing a regime change\ud
in political arrangements, regional cooperation, the Euro Atlantic integration and\ud
many other. Studies of this period coincided with some very important events in geostrategic\ud
map of the world, especially in south-east Europe, with emphasis as most\ud
important: decomposition Soviet Union and Yugoslavia, the wars in Africa, the crisis\ud
in the Balkans and the Middle East, terrorist attack the U.S., beginning of the global\ud
war against terrorism, the Arab Spring and other.\ud
In such circumstances, the current security theories point to characteristics of national\ud
security crises in period of its existence. On the basis of that, to compile time analysis\ud
for the period before the war, during and after performances periods wars, which\ud
shall be established strategy of the modern world. One of the contemporary security\ud
theories is a theory of realism. It is believed that realism in the relations between\ud
strategy, security studies, international relations and political science. At the end of\ud
the paper, will be definite the impact on the development of modern realism and\ud
determination of society, confirming or rejecting the possibility of external influence\ud
and the effects of the interior effects to the national interests and security, in general