Ryan Hoffman, Offutt fire station chief, leads a group of firefighters from the Czech Republic air force, the 155th Air Refueling Wing, Nebraska Air National Guard and the Offutt fire department while instructing them on how to put out fire on a RC-135 aircraft during a live-fire training exercise at Offutt Air Force Base, Nebraska, June 5, 2019. The Nebraska Air National Guard works in association with the Czech Republic through the State Partnership Program. Each participating guard unit has a brother or sister unit assigned to them.