As an industrial city responsible for the maintenance of the channel, Foxstone naturally has a port.
The port of Foxstone is the English Channel, which has widened considerably after the baptism of rising sea levels, and the area that can serve as a harbor has shifted, so this Foxstone is not in the same place as the Foxstone Lille knows.
Meanwhile, the port is not grand: there is indeed marine transport here, but not much.
Ever since the rabies virus broke out on the old net, a large number of self-aware AIs have turned around and taken control of war machines, with submarines being the most prevalent.
Before the collapse of the old net, there were a total of four corporate wars, with the second and fourth corporate wars involving major conflicts at sea, and nuclear submarines being the most lethal maritime military unit at the time.