I just noticed that my strongest starbase had Starship Defense +2 on the top of its stats. Does anyone know how this works because the manual says nothing about it. I haven't been able to get ships to orbit any starbase like they do planets, maybe they don't do this anyway but I can stack ships with starbases. Anyway the upshot is does anyone know how this works, do I have to be stacked with the starbase or does any ship within the starbases range get this +2 bonus. Any input would be greatly appreciated.