National Security Agency NSA Securing Our Future and Defending Our Nation Challenge Coin Department / Agency Where the three Roman Numerals bringing their number to Patches
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National Security Agency NSA Securing Our Future and Defending Our Nation Challenge Coin Department Agency Where the three Roman Numerals bringing their number to Patches Where the three Roman Numerals correspond to three positions in the alphabet [1] The NSA operation at Elmendorf AFB was a suspected ECHELON ground station