U.S. Marine Corps Lt. Col. Juliet Calvin, the commanding officer of 1st Network Battalion, Marine Corps Cyberspace Operations Group, conducts a walkthrough of the battalion workspaces at Marine Corps Base Camp Pendleton, California, June 4, 2020. 1st Network Bn., the first of six new Marine Corps network units, was created to improve oversight, command, and control of the Marine Corps enterprise network while managing building and local area networks around base. (U.S. Marine Corps photo by Staff Sgt. Donald Holbert) - U.S. Marine Corps Lt. Col. Juliet Calvin, the commanding officer of 1st Network Battalion, Marine Corps Cyberspace Operations Group, conducts a walkthrough of the battalion workspaces at Marine Corps Base Camp Pendleton, California, June 4, 2020. 1st Network Bn., the first of six new Marine Corps network units, was created to improve oversight, command, and control of the Marine Corps enterprise network while managing building and local area networks around base. (U.S. Marine Corps photo by Staff Sgt. Donald Holbert)