The cell phone network might be a day 0 target, but Cell phones would be left mostly untouched, they are easy to track/drone strike. Interference would only happen acutely for IED concerns or cqb operations
GPS/Satellite location would be jammed / disabled
Internet connections would be targeted, sea cables, microwave, etc
Electrical systems would be targeted.
Prioritize:
- electrical backups
- clean water backups
- communication backups (point to point fiber, lasers, microwave)