 A unique group within the wing.Organized according to mission, rather than by geography, the 543rd ISR Group has two squadrons within the United States that are part of Regional Signals Intelligence (SIGINT) Operations Centers.Providing command and control, personnel, communications, computer and logistics support for all Regional SIGINT Operations Centers conducting information operations, the 543rd ISR Group provides timely and accurate multi-regional SIGINT to warfighters and other intelligence users.