I have noticed EVERY single starbase that the AI deploys are ONLY Culture starbases. Awesome that the AI knows how to use Culture starbases, but kind of lame that this is the only strategy they know how to use. I have found in my current game playthrough that I must wipe out "friendly" races to me (Torians, in this case) simply because their culture was beginning to overwhelm me. So, I killed off the Torians and went after the Drengi next. So far, every starbase they have created are ALL Culture starbases also. And of the Torians, they probably had deployed 20 starbases, ALL of which were also only Culture based.

I am hoping this will be fixed. Surely, the AI can be taught how to use Military and Mining starbases effectively also.