The Defense Department said it will need at least $1 billion over the next five years to strengthen its stockpile of critical materials.

The recommendation comes from a report mandated by the White House that looked at supply chain issues at DoD, the Commerce Department, the Department of Health and Human Services and the Energy Department.

The Pentagon concluded that many of its supply chains for rare earth minerals and other strategic resources are at risk.

“These supply chains are at serious risk of disruption and are rife with political intervention and distortionary trade practices,” the authors of the report wrote. “Though the Department of Defense has requirements for strategic and critical materials, the civilian economy would bear the brunt of the harm from a supply disruption event.”

Read more: Federal News Network