Sgt. Jason Williams, 103rd Civil Support Team, and Senior Airman Scottie Branson, 176th Civil Engineering Squadron, prepare gear to respond to a simulated incident at a parking garage on the University of Alaska Anchorage campus May 18, in support of Exercise ORCA 2021. ORCA is a chemical, biological, radioactive, nuclear threats response exercise designed for participants to provide support in the aftermath of hazardous materials incidents. ORCA tests interoperability between agencies, increases opportunities for working relationships, and practices requests for assistance methods. Approximately 250 National Guardsmen from CST units in Alaska, California, Connecticut, Colorado, Idaho, Ohio, Oregon, Rhode Island, South Carolina, South Dakota, Washington, and Wisconsin are in Alaska to participate in Exercise ORCA 2021. Numerous support units and civilian agencies participated in the exercise as well. (U.S. Army National Guard photo by Spc. Grace Nechanicky)