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AFIO is sponsoring a contest to decrypt a coded letter sent by U.S Secretary of War, John Armstrong, to U.S. President James Madison in the early 1800s. Secretary Armstrong communicated with President Madison through a series of encrypted letters. The James Madison Estate has recently discovered an encrypted letter that was sent on Feb 20, 1808, but has not yet been decrypted. We invite our codebreaking enthusiasts to try their hands at decrypting the letter and sending the results to the AFIO by the December 31, 2025. The winners will receive a commemorative AFIO 50th Anniversary coin and bragging rights.
