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Homeland Security Distinguished from Homeland Defense

This is a difficult question that will not submit to a short answer. Here is the best I have found.

“HS describes the intersection of evolving threats and hazards with traditional governmental and civic responsibilities for civil defense, emergency response, law enforcement, customs, border control, and immigration.”

However, as a distributed system, no single entity has the mission to directly manage all aspects of HS. From Joint Publication 3-28, “Defense Support of Civil Authorities,” 31 July 2013. Read Here

“Homeland security and homeland defense are complementary components of the National Security Strategy… The Department of Defense (DOD) leads homeland defense and is supported by the other federal agencies. In turn, the DOD supports the nation's homeland security effort, which is led by the Department of Homeland Security (DHS). From, “Multi-Service Tactics, Techniques, and Procedures for Defense Support of Civil Authorities and Integrating With National Guard Civil Support,” p.1. Feb. 2013. Read Here.

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