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)
Brian Cavanaugh served in the White House National Security Council from 2018 to 2021 as the senior director for resilience policy and the national continuity coordinator. During his time at the White House, he oversaw the coordinated responses to COVID-19 and implementation of several critical infrastructure security-related executive orders. Currently, he serves as a senior vice president at American Global Strategies, LLC.
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)