Player Embed Code: Download Embed Share Top Army Official Provides Keynote Address at AFCEA TechNet Cyber 2021 Defense.gov Oct. 28, 2021 | 39:15 Army Lt. Gen John B. Morrison, deputy chief of staff for the Army, delivers the keynote address on defensive cyber and cyber operations against threats in continuous competition at the AFCEA TechNet Cyber 2021 event in Baltimore.