An F-22 Raptor assigned to the 3rd Wing flies over Joint Base Elmendorf-Richardson, Alaska, Feb. 27, 2018. The F-22 is the Air Force’s premium fifth-generation fighter asset. (U.S. Air Force photo by Jamal Wilson)

Airman 1st Class Daquan Hayes, 823rd Base Defense Squadron fire team member, poses for a photo at Moody Air Force Base, Ga., Jan. 12, 2018. The 823rd BDS is one of three operational security forces squadrons under the 820th Base Defense Group whose mission is to provide high-risk force protection and integrated base defense for expeditionary forces. (U.S. Air Force photo by Bennie J. Davis III)

Service members and veterans compete in the 100-meter freestyle swimming event in the 5th Annual Air Force Wounded Warrior Trials at the University of Nevada Las Vegas pool Feb. 25, 2018. Service members are participating in adaptive athletic reconditioning for lasting effects on physical and emotional recovery. (U.S. Air Force photo by Senior Airman Kevin Tanenbaum)

Pararescuemen from the 48th Rescue Squadron out of Davis-Monthan Air Force Base, Ariz., drive off-road utility vehicles into an objective area during the final mission of a five-day tactical medical training course in Perry, Fla., Dec. 15, 2017. During the course, pararescuemen were tasked with a variety of missions in which they were required to clear opposing forces, and provide extrication and medical treatment to isolated personnel. (U.S. Air Force photo by Staff Sgt. Chris Drzazgowski)

Chief Master Sgt. Brian Kruzelnick, 55th Wing command chief, thanks Gail Farrell, a 93-year old World War II and Korean War veteran who flew 21 missions as a tail gunner in the B-17 Flying Fortress, for his service after a medal presentation ceremony at the James M. McCoy Airman Leadership School Feb. 8, 2018. Col. Mike Manion, 55th Wing commander, presented Farrell with an Air Medal with two oak leaf clusters; the European-African Middle Eastern Campaign Medal with three bronze service stars; the American Campaign Medal; the World War II Victory Medal; and the Honorable Service Lapel Button, World War II. (U.S. Air Force photo by Zachary Hada)

Airmen from the 22nd Airlift Squadron offload from a C-5M Super Galaxy aircraft during a Tuskegee Airmen heritage flight at Killeen-Fort Hood Regional Airport, Texas, Feb. 23, 2018. The flight consisted of an all-black C-5M crew that completed the mission, displayed pride in their heritage and showcased their ability to conduct rapid global mobility in today’s Air Force by delivering U.S. Army helicopters to the Central Command area of responsibility. (U.S. Air Force photo by Master Sgt. Joey Swafford)

Two F-35A Lightning IIs, assigned to the 4th Fighter Squadron from Hill Air Force Base, Utah, conduct flight training operations over the Utah Test and Training Range on Feb 14, 2018. The F-35A is a single-seat, single engine, fifth generation, multirole fighter that’s able to perform ground attack, reconnaissance and air defense missions with stealth capability. (U.S. Air Force photo by Staff Sgt. Andrew Lee)

Secretary of the Air Force Heather Wilson speaks about innovation during the Air Force Association Air Warfare Symposium, Orlando, Fla., Feb. 22, 2018. (U.S. Air Force photo by Wayne A. Clark)

Airmen from the 723d Aircraft Maintenance Squadron, perform maintenance on the rotor of an HH-60G Pavehawk, Feb. 27, 2018, at Moody Air Force Base, Ga. They were evaluated on their ability to unfold the tail and main rotors of a Pavehawk to practice making the helicopter operational in a limited amount of time. (U.S. Air Force photo by Airman Eugene Oliver)

The Thunderbirds Diamond formation pilots perform the Diamond Roll maneuver over the Nevada Test and Training Range during a training flight, Feb. 28, 2018. During the training season, each pilot masters their position and maneuvers, while developing trust within the formation. (U.S. Air Force photo by Staff Sgt. Ned T. Johnston)

A pair of HH-60 Pave Hawk helicopters receive fuel from a HC-130J Combat King II during a training mission over the Nevada Test and Training Range Feb. 22, 2018. The HC-130J is designed to conduct personnel recovery missions, provide a command and control platform, in-flight refuel helicopters, and carry supplemental fuel for extending range or air refueling. (U.S. Air Force photo by Senior Airman Kevin Tanenbaum)

Lt. Col Michael J. Prodeline, a C-17 Globemaster III pilot with the 732nd Airlift Squadron, 514th Air Mobility Wing, maneuvers the C-17 in to be refueled by a KC-135 Stratotanker with the 157th Air Refueling Wing, New Hampshire Air National Guard, over the U.S. Feb. 22, 2018. The 514th AMW is an Air Force Reserve Command unit located at Joint Base McGuire-Dix-Lakehurst, N.J. The 157th ARW is located at Pease Air National Guard Base, N.H. (U.S. Air Force photo by Master Sgt. Mark C. Olsen)

Airman 1st Class Britainy Schmid, 364th Training Squadron hydraulic apprentice course student, inspects a booster pack for damage on a C-130 Hercules at Sheppard Air Force Base, Texas, Feb. 13, 2018. The booster pack powers the ailerons on the aircraft. Schmid is in block four of eight and scheduled to graduate March 21. (U.S. Air Force photo by Alan R. Quevy)

Air Force pararescuemen, assigned to the 83rd Expeditionary Rescue Squadron, 455th Air Expeditionary Wing, exit an Army CH-47 Chinook at Bagram Airfield, Afghanistan, Feb. 22, 2018. The pararescuemen primarily fly their missions on Army CH-47F Chinooks, making the 83rd ERQS the first joint personnel recovery team in Air Forces Central Command. (U.S. Air Force Photo by Tech. Sgt. Gregory Brook)