Indian Head, Maryland (July 30, 2021) -- U.S. Marine Corps Col. Donald J. Riley Jr. outgoing Commanding Officer of the Chemical Biological Incident Response Force (CBIRF), passes the CBIRF guidon to U.S. Marine Corps Col. Dean A. Schulz, oncoming commander of CBIRF, during the CBIRF change of command ceremony at Naval Support Facility Indian Head, Md. The ceremony signifies the transfer of command authority and responsibility from Riley to Col. Dean A. Schulz. (U.S. Marine Corps photo by SSgt Kristian S. Karsten/Released)

Photo by SSgt. Kristian Karsten