The main theme for the 2021 C4ISR Symposium, “Engineering Change,” will be the subject of a number of new permanent panels covering command & control, communications, computers, and networks; cyber; intelligence, surveillance, and reconnaissance; space; and expeditionary warfare. Attendees will join the Space & Naval Warfare Systems Center, OPNAV, and industry information technology leaders in exploring tactics and technologies to accelerate the Navy’s transformation into a global digital warfighting enterprise.