Join us in the stunning oldest naval chapel in the Nation to hear Author Ralph Simpson speak.

Over the course of human history, militaries of the world have succeeded or failed based on the security of their communications.

Mr. Simpson will join us to explain the role of cryptology in that history, what it is, and how it has impacted the world. This is your chance to not only learn about this fascinating subject, but you will also have the opportunity to see and touch a captured German Enigma Machine from World War II.

During the Cold War, Mare Island was home to an ultra-secure cryptographic school, joint Central Intelligence Agency, and National Security Agency spy submarines secretly operated from the base, and even John Walker, who later turned traitor and sold our Navy’s Cryptographic codes to the enemy, spent time here.