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220610-F-IW100-0002.JPG Photo By: Courtesy Photo

JOINT BASE SAN ANTONIO, Texas - During this summer’s San Antonio-Electromagnetic Defense meeting June 10, one of the four work groups chartered through SA-EMD, Domestic Electromagnetic Spectrum Operations, or DEMSO, released a guide to assist communities across the Nation in preparing for this worst-case scenario, addressing both destructive solar-induced geomagnetic disturbances and high-altitude electromagnetic pulses, whether they are naturally occurring or man-made.


This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at , which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.

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