HD. HD is the protection of US sove

HD. HD is the protection of US sovereignty, territory, domestic population, and critical defense infrastructure against external threats and aggression or other threats as directed by the President.3760 DOD is the federal agency with lead responsibility, supported by other agencies, to defend against external threats and aggression. However, against internal threats DOD may be in support of another USG department or agency.When ordered to conduct HD operations within US territory, DOD will coordinate closely with other government agencies. Consistent with laws and policy, the Services will provide capabilities to support CCDR requirements against a variety of threats to national security.These include invasion, cyberspace attack, and air and missile attacks.Support to HD provided by the National Guard will be IAW DODD 3160.01, Homeland Defense Activities Conducted by the National Guard.