Re: Starting Military Bases as victory upgrades?
It's not specified in the rulebook, just on the sticker card itself.
Spoiler (click to reveal)
GAME END UPGRADES
Add these to the pool of upgrades available at the end of the game.
Select a city currently containing a military base and add a starting military base sticker. Add a military base to every city with one of these stickers during the setup of all future games. When placing a starting military base sticker, place it close to the city.