as a national state with sea access, you could filter it from seawater. that's not energy efficient and takes a long time, but it's relatively easy access. ht

as a national state with sea access, you could filter it from seawater. that's not energy efficient and takes a long time, but it's relatively easy access. https://www.epj-n.org/articles/epjn/pdf/2016/01/epjn150059.pdf https://www.epj-n.org/articles/epjn/pdf/2016/01/epjn150059.p... ~100g uranium / 117kg adsorbent material / month a warhead needs about 25kg (enriched) uranium. so 2,5 months with ~11,2tons of adsorbent material spread over a few square miles of sea should give you the needed 25kg. That still needs to be enriched, but once in operation a system like this generates about 125kg uranium/year. (if you need more or faster just scale the system, plenty of space within the 12 mile zone)