A senior U.S. commander argues Bitcoin’s proof-of-work strengthens cybersecurity and could bolster national defense; lawmakers weigh its strategic role and domestic mining resilience. Abstract: The article reports that Samuel Paparo described Bitcoin as more than a monetary instrument, highlighting its proof-of-work design as a cybersecurity asset that could support national defense. It covers a Senate Armed Services Committee hearing on Indo-Pacific threats and cyber risks from state-linked actors, where experts argued Bitcoin could secure data and command signals in cyber conflicts. It also notes bipartisan interest in domestic mining supply chains, with proposals like the Mined in America Act and a formalized Strategic Bitcoin Reserve to reduce reliance on foreign hardware.