Rules Question - Stranded Captial Ships

[Loops]

What happens to capital ships that are unable to reach any major naval base? Can they patrol/raid normally from wherever they ended up, or are they stuck in port?

My last game as IJN I cut off part of the allied fleet in Brisbane by taking a sea lanes base. The next turn I raided and destroyed the Brisbane base, leaving that allied fleet with no reachable major naval base. (Ceylon was still rebuilding from an earlier raid.) I was just wondering if the capital ships in that fleet were still capable of action.

Great job on the game - I bought the download version earlier this week and have been having a blast with it.