U.S. Air Force Master Sgt. Brian Dougherty, from the 133rd Aircraft Maintenance Squadron, gives a safety briefing before an engine run on a C-130 Hercules in Yuma, Ariz. Feb. 28, 2019. This year’s Operation Snowbird exercise consisted of a multi-state aviation partnership between the 133rd and 182nd Airlift Wings, in preparation for future overseas deployments. (U.S. Air National Guard photo by Tech. Sgt. Austen R. Adriaens)