Servicemen of the 128th Separate Brigade of Territorial Defense Forces practice storming enemy positions during a tactical drill in the Zaporizhzhia direction, southeastern Ukraine. (Ukrinform/NurPhoto 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.
Rescue personnel evacuate mock victims from a subway train during a homeland defense emergency drill involving a chemical, biological, radiological, or nuclear attack in an urban environment in New York City on August 4, 2021. (Photo by Kena Betancur/AFP via Getty Images)