This expansion adds all of the ships scrapped at the 1922 Washington Naval Treaty. Along with the rules for integrating the ships into the game, the expansion includes:
Minor navies such as Denmark and Poland.
Mothballed ships
Ship classes that were not large enough to warrant a piece in Seas of Thunder
Ships that were almost completed but ended up rusting on the docks.
Axis aircraft carriers
Experimental designs that only existed on the drawing board.