Prof. Misty Blessley, Associate Professor of Supply Chain Management at West Virginia University, brings up a timely topic.
A major shift is underway in U.S. defense procurement policy, according to Reuters.com (July 20, 2026). President Trump recently signed an executive order making it harder for defense contractors to obtain waivers that allow them to purchase critical minerals and materials from China and other prohibited foreign suppliers. Contractors must now demonstrate that they searched for alternative sources, disclose where materials originate, and provide a plan to reduce dependence on those suppliers.
This policy aligns closely with the goals of the Buy American Act of 1933, which requires federal agencies to give preference to domestically produced goods when purchasing supplies. The law was designed to support American manufacturing, strengthen the nation’s industrial base, and reduce dependence on foreign suppliers. While waivers have long been available when products were unavailable domestically or significantly more expensive, the new executive order signals a tougher approach to those exceptions in defense contracting.
Why have defense contractors relied on foreign suppliers? In many cases, the answer involves availability. Critical minerals and specialized components are often sourced through global supply chains, with some materials heavily available from prohibited foreign suppliers. Cost can also play a role. Foreign suppliers may offer lower prices, allowing contractors to control expenses.
At the heart is the urgent need to keep weapons flowing to U.S. forces and allies. According to Peter Navarro, White House senior counselor for trade and manufacturing, “This is not paperwork. It is battlefield preparation.”
From a supply chain perspective, the most important aspect of the executive order is its focus on visibility and resilience. The Pentagon has been directed to map lower-tier suppliers and identify vulnerabilities hidden deep within defense supply networks, to give a clearer view whether foreign-controlled suppliers could threaten weapons production during a conflict. Contractors must also evaluate suppliers for foreign ownership, financial stability, and manufacturing risks.
The U.S. government is not leaving contractors high and dry. Recent investments in companies such as MP Materials, a domestic producer of rare earth materials, demonstrate efforts to make buying American easier.
Classroom Discussion Questions:
- What opportunities do you see resulting from this executive order?
- Do the benefits of increased supply chain security outweigh the likely increase in costs? Why or why not?