<p>You know that Fuel is needed to power a ship for example Nimitz-class Aircraft Carriers have a nuclear reactors. So what powers the Kirishima and all other ships of the United Nations Cosmo Navy?
</p>
<p>Most likly a nuclear reactor, as we should be out of oil by 2199, none of the USCN ships appear to have solar pannels so that's out of the question.
</p>