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Jack Nichols has extensive military experience, currently serving as the ARCYBER Command Sergeant Major since January 2018, with additional roles including Chief Information Officer/G6 Sergeant Major within the US Army and FORSCOM G6 Sergeant Major. From March 2021 to September 2024, Jack Nichols is transitioning from active duty with the U.S. Army Cyber Command, further showcasing a robust background in leadership and cyber operations within the Army.