The current defense "space access" problem highlights massive work needed to rebuild supply chains; the U.S. does not manufacture key components like drone motors domestically, and critical materials (copper, steel, magnets) largely run through China. To produce low-cost, scalable systems and iterate quickly, the domestic industrial base for manufacturing, electronics, and engineering talent must be rebuilt. Founders are now moving "down the stack" to solve these foundational industrial problems. LONG on opportunities in real manufacturing companies and supply chain solutions that build resilience and enable scalable, cost-reciprocal defense production. Requires complex alignment between private companies and federal, state, and local governments for permits, land, and power to build physical factories and projects.