No more stones. No more spears. No more slings. No more swords. No more weapons! NO MORE SYSTEMS!
You can fire your arrows from the Tower of Babel, but you can never strike God!
Is there somebody who knows when the marker "Allied War Status" is flipped in the reverse side? This marker has a symbol of a port, but I didn't find in the rules anything about use of the reverse side.
I think it's to indicate whether Invasions are still allowed or not (before Unrestricted Submarine Warfare). But that's just a guess.