Digital Sovereignty: Nations in the Age of Global AI Systems   In the 21st century, the rapid growth of artificial intelligence (AI) has ushered in a new era of technological innovation, economic transformation, and geopolitical competition. AI systems, powered by vast amounts of data and sophisticated algorithms, are reshaping industries, governance, and daily life. However, as nations strive to harness the benefits of AI, they are confronted with a critical challenge: how to maintain digital…