Yes that's life, but in the real life we have pay for the maintenance of the ships. And in order to prevent an arms race, we would have only find a regulation for it. Thus I hardly believe that all countries have the necessary resources, in order to be able to really afford such large fleets. Do Russia, England, the USA and Atlantis, but naturally also all other countries, have really these quantities of fuel, in order to be able to supply all their ships? But the fuel does not only play a role also the number of crews, and crews cost money. In addition, the everyday things for the supply of the crews (Fresh water, food, clothes and so on ). All these things are necessary to be able to keep around a ship in motion.