as is the utility of the Cuba and Holland boxes?

[LUDOPEREZ]

I'm playing ACW and i dont't understand the utility of the Cuba(Spain) and Holland boxes because it isnt allowed the entry to this boxes whith ships.
Can be useful if the foreign Entry occurs?
Thanks a lot

[Jacek]

Yeah, what are they for? Does anybody know?

[PhilThib]

Only me...and I won't tell

In fact they are here for 'planned' expansion and new rules for the game, but this is not for now (or even 2007 at all)...I need to keep some little secrets

[Spruce]

they have use - from time to time a blockade runner "pops" up there