Senior Airman Nikki Anderson communicates with the aircrew aboard a KC-135 Stratotanker while preparing to launch the aircraft at Selfridge Air National Guard Base, Mich., Nov. 4, 2018. The KC-135 is used for air-to-air refueling, cargo and passenger lift and can be configured to transport medical patients. (U.S. Air National Guard photo by Tech. Sgt. Dan Heaton