Additive manufacturing (AM), or 3D printing, transforms supply chains by offering exceptional flexibility, speed, and cost-efficiency in production processes. AM provides innovative solutions that streamline manufacturing workflows as industries face growing demands for customized products, faster delivery times and reduced waste. Beyond improving efficiency, AM is playing a key role in safeguarding national interests by enhancing security, reducing dependence on foreign suppliers, and fostering resilience in critical sectors. With its ability to produce on-demand parts locally and create complex designs, AM is reshaping global supply chains while strengthening national security and economic sovereignty.