In WWII, countries needed to settle in gold. No one trusted fiat.
When countries next lose trust in each other, will they accept #bitcoin for payment?
If the answer is "yes" or "maybe," this is another answer for when politicians question "what is the value of a strategic reserve, and why do we need it?"
It is insurance for when no one accepts your full faith and credit, and your future relies on efficient trade for needed goods and service.
Then, for the same reason, countries will want to ensure sufficient hashrate to process its transactions and maintain the integrity of the network.