Staff Sgt. Benjamin Reynolds, 891st Missile Security Forces Squadron response force leader, crouches in rotor wash during a field training exercise at Turtle Mountain State Forest, N.D., Feb. 14, 2018. During the exercise 91st Security Forces Group defenders coordinated simulated medical evacuations with two 54th Helicopter Squadron UH-1N Iroquois. (U.S. Air Force photo by Senior Airman J.T. Armstrong)

A pararescueman rappels out of an HH-60G Pave Hawk helicopter, assigned to the 66th Rescue Squadron, during training at Nellis Air Force Base, Nevada, Feb. 22, 2018. (U.S. Air Force photo by Senior Airman Kevin Tanenbaum)

Air Force Academy center fielder Daniel Jones runs down a well-hit ball to right, during the Freedom Classic baseball tournament at Grainger Stadium in Kinston, N.C., Feb. 24, 2018. Jones is a third-year cadet at the Air Force Academy originally from Coppell, Texas. (U.S. Air Force photo by Tech. Sgt. David W. Carbajal)

1st Special Operations Squadron loadmasters prepare to drop a wreath from an MC-130H Combat Talon II, during a memorial flight off the coast of the Philippines, Feb. 26, 2018. The flight honored those who were lost when a 1st SOS MC-130E, call sign STRAY 59, crashed 37 years ago during an exercise, killing eight members of the crew and 15 passengers. (U.S. Air Force photo by Staff Sgt. Matthew B. Fredericks)

Senior Airman Heather Carter, a wounded warrior athlete, throws a shot put during the track and field competition at the 5th Annual Air Force Wounded Warrior Trials at Nellis Air Force Base, Nev., Feb. 27, 2018. The Air Force Trials is an adaptive and resiliency sports event designed to promote the mental and physical well-being of the participants. (U.S. Air Force photo by Senior Airman James R. Crow)

Two F-22 Raptors and three F-16 Fighting Falcons fly in formation behind a KC-135 Stratotanker while returning home from the Heritage Flight Training Course at Davis-Monthan Air Force Base, Ariz., March 5, 2018. The course brings pilots, maintainers and aircraft from various generations together to train for dissimilar formation flights to demonstrate the Air Force's history of airpower. (U.S. Air Force photo by Senior Airman Destinee Sweeney)

Master Sgt. Jeremy Streeter disassembles communications equipment during the 2018 Patriot Sands exercise, March 2, 2018, at Patrick Air Force Base, Fla. The airlift training exercise, which took place from Feb. 27 to March 3, 2018, enhances their ability to operate in simulated deployed environment with limited support. (U.S. Air Force photo by Staff Sgt. Christopher Stoltz)

Twelve U.S. Air Force KC-135 Stratotankers, assigned to the 100th Air Refueling Wing, taxi down the runway at RAF Mildenhall, England, Feb. 27, 2018. The show of force maneuver demonstrated the readiness of the wing to provide global air refueling support at short notice. (U.S. Air Force photo by Senior Airman Justine Rho)

U.S. Air Force pararescuemen, 57th Rescue Squadron, rescue a pilot during exercise Pointblank at the Stanford Training Area, England, Feb. 27, 2018. Exercise Pointblank is a recurring large-force exercise designed and cohosted by the 48th Fighter Wing and the Royal Air Force. (U.S. Air Force photo by Senior Airman Malcolm Mayfield)

An A-10C Thunderbolt II performs aerial maneuvers during the annual Heritage Flight Training and Certification Course at Davis-Monthan Air Force Base, Ariz., March 3, 2018. Established in 1997, the course certifies civilian pilots of historic military aircraft and Air Force pilots to fly in formation during upcoming air shows. (U.S. Air Force photo by Airman 1st Class Frankie D. Moore)