The global landscape has seen the emergence of three primary models for the military application of digital currencies. Resource-rich nations are adopting "resource tokenization," exemplified by Venezuela's Petro. Meanwhile, smaller nations are utilizing "decentralized crowdfunding," and developed countries are implementing "on-chain sanctions." The U.S. 2025 National Defense Authorization Act mentions a "Defense Blockchain Internal Testing Program," which could become a crucial strategic tool for "financial defense" in the future.