# US Department of War critical mineral investments > Live situation record from CLSTR: https://clstr.news/situations/us-department-of-war-critical-mineral-investments > Updated: 2026-09-28T08:28:42.000Z. Sources: 9. Developments: 2. The U.S. Department of War has initiated strategic investments in critical mineral projects to secure domestic and allied supply chains for national defense and advanced manufacturing. In August 2026, the Department announced a $35.6 million equity investment in Trilogy Metals to develop mineral resources in northwestern Alaska. This investment, which includes a 10% direct ownership stake, targets the Upper Kobuk Mineral Projects to secure supplies of copper, cobalt, germanium, and other essential materials. The initiative follows the approval of the Ambler Road Project to support infrastructure and mining development. In September 2026, the Department extended its funding to the United Kingdom, investing $9.25 million in Cornwall Resources Limited. This funding is intended to accelerate the Redmoor tungsten-copper-tin project in Cornwall, which is described as one of the highest-grade tungsten resources globally. The investment aims to bolster a resilient allied supply chain for tungsten, a metal vital for superalloys used in rocket engines and armor-piercing ammunition. ## Timeline ### 2026-09-28: Strategic Minerals receives $9.25M U.S. funding for UK tungsten project The U.S. Department of War has invested $9.25 million in Strategic Minerals' subsidiary to accelerate the Redmoor tungsten project in Cornwall, UK, to secure critical mineral supply chains. 4 sources. https://clstr.news/cluster/strategic-minerals-receives-925m-us-funding-for-uk-tungsten-project ### 2026-08-30: Department of War invests $35.6 million in Trilogy Metals The U.S. Department of War is investing $35.6 million in Trilogy Metals to secure domestic supplies of critical minerals, including copper and cobalt, from projects in northwestern Alaska. 5 sources. https://clstr.news/cluster/department-of-war-invests-356-million-in-trilogy-metals --- Cite as: US Department of War critical mineral investments. CLSTR, https://clstr.news/situations/us-department-of-war-critical-mineral-investments