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Bucket-wheel excavators mine rare earth materials on Ukrainian soil on February 25, 2025, in the Zhytomyr region of Ukraine. (Kostiantyn Liberov via Getty Images)
Associate Executive Director for Strategic Deterrence and Nuclear Programs at the National Strategic Research Institute at the University of Nebraska
Dr. Christopher Yeaw is associate executive director for strategic deterrence and nuclear programs at the National Strategic Research Institute at the University of Nebraska, US Strategic Command’s University Affiliated Research Center. He was a technical contributor to this article, which does not represent the views of US Strategic Command or the University of Nebraska.