1. Does cohesion affect the combat etc. effectiveness as ships the same as land units?
2. If so, how is cohesion recovered? Resting in place, as with land units, doesn't seem to make sense, so must the ships return to port?
3. I don't seem to be able to construct an effective blockade. For each sea zone, the tooltip info gives a number of naval units needed to blockade it. Once this number is met, the info says "you have enough naval units to blockade this zone" or some such wording. But the blockade icon the manual mentions does not appear, so I am not sure I am effectively blockading ... what am I doing wrong? Is there a "blockade" button or something that I'm missing?
4. If there are enemy forts in the sea zone I am trying to blockade ... must I be prepared for them to fire at me? Will my naval units fire back?
Completely confused.

Thanks for any advice.
