AftertheSeptember11events,theinternationalpatternandgreatpowerrelationshavereadjusted.Theimportanceofnon-traditionalsecurityfactorsininternationalpoliticsriserapidly.Thehomelandsecurityissuethatvarioussovereignstatesareconfrontinghasbecomeprominent.Thesechangesre-challengethetraditionalsecurityconcept.