| Title | Office of the Assistant Secretary of Defense for Homeland Defense and Americas' Security Affairs |
| Description | This office is responsible for the supervision of homeland defense activities and provides oversight to DoD homeland defense activities, develops policies, and makes recommendations on homeland defense, defense support of civil authorities, emergency preparedness and domestic crisis management. This office is also responsible for the coordination of DoD assistance to federal, state, and local officials in responding to threats involving nuclear, radiological, biological, and chemical weapons. |
| Parent Office | Office of the Under Secretary of Defense for Policy |
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