In D cities where they're rioting and martial law is in effect, military will deny the enemy comms.
that was just my opinion, another is to be prepared as much as possible for major disruptions in everything.
PEG works on green wet wood to turn it into a solid like plastic.
Search PEG wood preservative:
https://www.google.com/search?q=PEG+wood+preservative&oq=PEG+wood+preservative&aqs=chrome..69i57.9497j0j1&sourceid=chrome&ie=UTF-8