1. If my ships just sit in a sea zone with no enemy ships but an enemy naval base and do not move during their turn, do I sill roll for mines? The rule says “move through or into…” I assume they would not roll.
They do NOT roll for mines.
2. Also if I am correct above, would my ships that just sit in a mined sea zone their turn roll for mines if another of my ships enters the same sea zone the same turn or would only the moving ship?
Only the new ships entering would roll. Plus remember this is done after all movement and before any battle rolls.
3. If I move into a sea zone to reinforce w/transported units a contested land area, do I roll for mines if the sea zone is adjacent to a mine? I assume so… Yes (if you mean territory adjacent to a mine), transports would roll for mines, thus your reinforcement may fail (units lost) if ship is sunk.
If I move an empty transport into mined uncontested sea zone to load units, I roll the mines before I load, right?
Actually no, you would go ahead and complete your full movement, even to the point of unloading those units. The mine rolls are done after ALL movement completed for all of your units.
But, what if the transports are just sitting there having moved in last run, and start “bridging” units from one land territory to another… they are not “moving into or through” the sea zone… If the ships don’t move, there is no roll for mines. (Even though technically they are moving IN that sea zone - but rule is built around moving into or through).
Finally, I can pick up units from a contested territory, right? Yes, the territory can be contested, but the sea zone must be friendly.