The Department of Defense’s supply chains encompass over 200,000 suppliers. That’s not a typo. Two hundred thousand individual companies feeding parts, materials, and services into the US military machine.

Many of those suppliers rely on sub-suppliers, who rely on their own sub-suppliers, creating layers of dependency that even the DoD itself can’t fully see. A Defense Business Board report released on January 13, 2025, put a name to what’s needed: “supply chain illumination,” meaning continuous visibility into multiple tiers of supplier networks through systematic mapping and risk vetting.

The most uncomfortable data point in that picture is rare-earth materials. A full 72% of US rare-earth imports come from China. These aren’t obscure commodities. They’re essential ingredients in everything from fighter jet engines to missile guidance systems to the magnets inside military-grade electronics.

The directive aligns with the DoD’s broader National Defense Industrial Strategy released in 2023, which explicitly identified supply chain vulnerabilities as a top-tier national security concern. It also builds on the Defense Business Board’s January 2025 recommendations, which argued that mapping alone isn’t enough. You need ongoing monitoring, risk assessment, and the ability to identify alternative sources when a critical supplier turns out to be uncomfortably close to a geopolitical rival.