Defenders from the 325th Security Forces Squadron patrol the coastline around Tyndall Air Force Base, Fla., Jan. 26, 2016, in a valor class North River boat. The new boats will help the 325th SFS provide force protection to 128 miles of shoreline in support of 325th Fighter Wing and 30 associate units. (U.S. Air Force photo/Senior Airman Solomon Cook)

A B-2 Spirit bomber sits on the flightline prior to takeoff at Whiteman Air Force Base, Mo., for Red Flag 16-1 Feb. 2, 2016. Established in 1975, Red Flag includes command, control, intelligence and electronic warfare exercises to better prepare forces for combat. (U.S. Air Force photo/Airman 1st Class Michaela R. Slanchik)

Airman 1st Class Corey Lewis, a 509th Logistics Readiness Squadron materiel management journeyman, gathers an improved outer tactical vest for a deployment bag at Whiteman Air Force Base, Mo., Feb. 3, 2016. Depending on an Airman’s destination, they may require different items, from an advanced combat helmet, web belt and canteen to chemical defense gear and field items. (U.S. Air Force photo/Airman 1st Class Michaela Slanchik)

An F-22 Raptor from Tyndall Air Force Base, Fla., flies over Nellis AFB, Nev., during Red Flag 16-1, Feb. 5, 2016. Twelve Tyndall F-22s participated in Red Flag 16-1, a joint-training, full-spectrum readiness exercise designed to provide the most realistic combat training possible. (U.S. Air Force photo/Senior Airman Alex Fox Echols III)

Staff Sgt. Joel Kelehar, a 100th Maintenance Squadron non-destructive inspection craftsman, dips a KC-135 Stratotanker accumulator into a hydrophilic remover Feb. 3, 2016, on Royal Air Force Mildenhall, England. The bath removes any excess penetrant that a simple rinse of water is not able to do. (U.S. Air Force photo/Senior Airman Christine Halan)

Royal Australian Air Force Sgt. Angus Shaw, a 37th Squadron loadmaster, left, talks with two 4th Squadron combat controllers aboard a C-130J Super Hercules during Exercise Cope North 2016 over Rota, Northern Mariana Islands, Feb. 12, 2016. Exercise The exercise includes 22 total flying units and nearly 3,000 personnel from six countries and continues the growth of strong, interoperable and beneficial relationships within the Asia-Pacific region through integration of airborne and land-based command and control assets. (U.S. Air Force photo/Staff Sgt. Matthew B. Fredericks)

F-15C Eagles assigned to the 131st Fighter Squadron at Barnes Air National Guard Base, Mass., and the 194th Fighter Squadron at Fresno Air National Guard Base, Calif., wait to refuel beside a KC-135 Stratotanker during a Red Flag 16-1 training mission on Feb. 11, 2016. The concept of Red Flag was developed by Maj. Moody Suter to simulate the first 10 combat missions pilots would face. (U.S. Air Force photo/Master Sgt. Burt Traynor)

A member of the 100th Logistics Readiness Squadron refuels a 74th Expeditionary Fighter Squadron A-10C Thunderbolt II during forward area refueling point training at Plovdiv, Bulgaria, Feb. 11, 2016. A single A-10 usually receives approximately 2,000 pounds of fuel in a four- to five-minute span during FARP training but the C-130 Hercules can provide tens of thousands of pounds of fuel if needed. (U.S. Air Force photo/Airman 1st Class Luke Kitterman)

Air Force Secretary Deborah Lee James and Air Force Chief of Staff Gen. Mark A. Welsh III testify before the Senate Appropriations Committee on Defense in Washington, D.C., Feb. 10, 2016. The two leaders presented the fiscal year 2017 Air Force budget request. (U.S. Air Force photo/Scott M. Ash)

Ohio Air National Guard members work in the early morning of Feb. 16, 2016, to remove snow from the flightline and fleet of C-130H Hercules at the 179th Airlift Wing, Mansfield, Ohio. The Ohio ANG unit is always on mission to respond with highly qualified citizen Airmen to execute federal, state and community missions. (U.S. Air National Guard photo/Tech. Sgt. Joe Harwood)

An Airman with the 2nd Air Support Operations Squadron maneuvers to the objective during training at U.S. Army Garrison Bavaria in Vilseck, Germany, Feb. 9, 2016. The training consisted of 2nd ASOS Airmen calling in close air support, neutralizing opposing forces and practicing medical evacuation by helicopter. The Airmen swapped roles as opposing forces and U.S. forces throughout the training to challenge their capabilities in controlling airpower in an urban environment. (U.S. Air Force photo/Senior Airman Jonathan Stefanko)

Four U.S. Air Force F-22 Raptors from Kadena Air Base, Japan, fly over the skies of South Korea, in response to recent provocative action by North Korea, Feb. 17, 2016. The Raptors were joined by four South Korean F-15K Slam Eagles and U.S. Air Force F-16 Fighting Falcons. The F-22 is designed to project air dominance rapidly and at great distances and currently cannot be matched by any known or projected fighter aircraft. (U.S. Air Force photo/Airman 1st Class Dillian Bamman)