Author Biography

Karl Umbrasas, Psy.D., is a clinical and forensic psychologist. He has researched and written on topics related to national security, US strategy, and high-end war. Karl has a doctoral degree in clinical psychology and masters’ degrees in intelligence, political science, and counterterrorism.



Subject Area Keywords

Defense policy, Homeland security, National security, Psychology


The United States homeland does not enjoy sanctuary in the twenty-first century geopolitical environment. Near-peer rivals, such as China and Russia, have capabilities that can impact the United States homeland during a high-end war. Adversaries’ aerospace capabilities have the potential to cause large volumes of psychological casualties among the United States population. Psychological casualties during a high-end war could serve as the basis for a mass call to end a war due to the altered information processing seen among traumatized people. Such a call to end a war could result in unfavorable peace settlements. The United States homeland must improve its ability to prevent cognitive hacking and it must insulate its population from epistemologies unfavorable to the United States.