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Historical Defense Agency (HDA)

Protecting History for Posterity

Architectural Preservation

Architectural Preservation and Restoration is one of the primary goals of the HDA.

HDA Main Headquarters

Undisclosed Subterranean Location
Washington, D.C., U.S.A.
(202) 838-7865

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Historical Defense Agency (HDA) | Washington, D.C. | (202) 838-7865 |

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Manuscript Duplication
Monument Protection
Architectural Preservation