Defense Intelligence Reference Documents (DIRDs)
UFO History
a bunch of historical (ish?) events that relate to the UFO phenomenon
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Defense Intelligence Reference Documents (DIRDs)
Defense Intelligence Reference Documents (DIRDs)
You can access these here:
DIRD_01_Metallic_Glasses_for_Aerospace_Applications
DIRD_02-DIRD_Aerospace_Applications_of_Programmable_Matter
DIRD_03-DIRD_Pulsed_High-Power_Microwave_Source_Technology