He also notes it signals a shift away from choosing providers with no viable alternatives, strengthening supply-chain resilience.

Navarro calls for greater transparency and urges the Pentagon to map vulnerabilities and replace unreliable foreign suppliers with domestic or allied options.

Contractors must conduct exhaustive searches for alternatives, reveal material origins, and develop plans to shift away from prohibited suppliers, with potential contract loss for noncompliance.

The Pentagon is leading a broad supply-chain overhaul to expand weapon production while pinpointing vulnerabilities deep in the industrial base.

Navarro frames the move as essential battlefield preparation to know supply dependencies before any potential conflict.

White House senior adviser Peter Navarro emphasizes there will be no excuses for inaction, underscoring the policy’s seriousness.

Navarro says the goal is to expose hidden vulnerabilities in lower-tier suppliers and hold contractors accountable for transparency and reliability.

Officials describe the effort as battlefield preparation to determine which missile systems and platforms depend on foreign-controlled suppliers before a conflict.

Contractors failing to implement approved mitigation plans or found committing fraud could face contract penalties or prosecution by the Justice Department.

Noncompliance may lead to penalties or referral for potential prosecution if fraud or failure to execute mitigation plans is found.

Markets reacted positively for MP Materials, a Pentagon-invested company, with shares rising about 1% after the announcement.

The White House has signed an executive order to tighten defense supply chain rules, aiming to reduce reliance on foreign, especially Chinese, suppliers for critical minerals and materials used in weapons production.