1-3. DSCA missions encompass more than disaster response or homeland defense. Homeland defense is the protection of United States sovereignty, territory, domestic population, and critical defense infrastructure against external threats and aggression or other threats as directed by the President (JP 3-27). A majority of DSCA missions support a designated national special security event (NSSE). A NSEE is a designated event that, by virtue of its political, economic, social, or religious significance, may be the target of terrorism or other criminal activity (JP 3-28). Olympics, inaugurations, or state funerals are examples of NSSEs. (See chapter 4, section II for more information on other domestic support considerations).