Members of the 106th Rescue Wing conduct combat-and-water survival training at Homestead Air Reserve Base, Fla., on Jan. 18, 2016. The training included instruction on using emergency radios, tactical movements through difficult terrain, building shelters, building fires and methods for evading the enemy. (Christopher S. Muncy/U.S. Air National Guard)

Staff Sgt. Brian Alfano, a Survival, Evasion, Resistance, and Escape instructor with the 106th Rescue Wing, demonstrates an overt method for marking a drop zone during a bundle drop training flight at Homestead Air Reserve Base, Fla., on Tuesday, Jan. 19, 2016. (Christopher S. Muncy/U.S. Air National Guard)

Airman 1st Class Rhaymark Neri, 455th Expeditionary Aircraft Maintenance Squadron weapons load crew member, secures a sensor cover on a GBU-54 munition after downloading it from an F-16 Fighting Falcon at Bagram Air Field, Afghanistan, on Friday, Jan. 15, 2016. (Robert Cloys/U.S. Air Force)

First Lt. Matthew Sanders, 421st Expeditionary Fighter Squadron pilot, prepares for a combat sortie in an F-16 Fighting Falcon at Bagram Air Field, Afghanistan, on Sunday, Jan. 17, 2016. (Robert Cloys/U.S. Air Force)

A performers with Tops in Blue sings ''Like I'm Gonna Lose You'' during a concert on Jan. 15, 2016, at Mascoutah High School, Ill. (Tristin English/U.S. Air Force)

Staff Sgt. Randall Bender, 455th Expeditionary Maintenance Squadron Fabrication Flight aircraft metals technology craftsman, practices a tungsten inert gas weld, commonly used in aircraft component repair, at Bagram Air Field, Afghanistan, on Monday, Jan. 18, 2016. (Robert Cloys/U.S. Air Force)