Russia, a nation nation known for putting the first satellite, man, woman, dog, etc. into space (not to mention being the first to pioneer space tourism with Space Adventures) may embrace nuclear rockets to help them reach the stars (and perhaps even Mars as well).
While a nuclear rocket from a practical stand point makes sense (as they can lift heavier objects to orbit compared to their chemical cousins), it would probably also isolate Russia (since anything nuclear is often frowned upon–at least in the west).
It may also help Russia catch up to America (or rather the private sector) as well as maintain their lead against China, whose presence is motivating everyone to claim a piece of Luna for their own.
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