<t> What does it mean when a port says "Port Supply: 0 of 20" and what is causing it to be "0"? I understand that ports can only supply 20 strength points per port size. I suspect that this is trying to say that I have more strength points in the area than the ports can supply but if that is true ...

I took every port in the Black Sea and the Sea of Azov. Turkey is still neutral. However the Soviet Black Sea fleet has been hanging around off the coast of Maikop for about a year now with no apparent ill effects. What gives?