Europe faces a pivotal challenge in securing access to rare earth elements (REEs), the critical inputs behind the continent's green and digital transitions. With over 80% of global REE processing controlled by China, Europe's reliance on external sources leaves it vulnerable to geopolitical shocks, supply disruptions, and price volatility. Despite growing demand in sectors such as electric vehicles, wind turbines, and defense, the EU lacks both upstream mining and midstream refining capabilities at scale. Strategic autonomy requires a bold shift—building domestic processing infrastructure, fostering alliances with resource-rich yet stable nations, and developing strategic stockpiles. The European Critical Raw Materials Act has laid a policy foundation, but execution remains slow and fragmented. Without urgent investment and coordinated industrial strategy, Europe risks becoming a technological taker rather than a driver. REEs are not just a materials issue—they are now a sovereignty issue at the core of Europe’s economic and geopolitical future.