Naval Aircrewman (Helicopter) 3rd Class Samantha Jelonnek prepares to take off in a MH-60R Sea Hawk attached to Helicopter Maritime Strike Squadron (HSM) 70 embarked onboard the aircraft carrier USS George H.W. Bush (CVN 77) during exercise Bold Alligator 2017 (#BA17). (Mass Communication Specialist Seaman Zachary P. Wickline/Navy) 
U.S. Marines assigned to Aircraft Rescue and Fire Fighting conduct a controlled burn training exercise aboard Marine Corps Air Station Beaufort, South Carolina. The training simulates extinguishing a jet fire. (Cpl. Benjamin McDonald/Marine Corps) 
U.S. Marine Corps Lance Cpl. Luis Arana fires the Carl Gustav rocket system during live fire training at Range 7 aboard Camp Hansen. The Carl Gustav rocket system is being introduced to the Marine Corps to eventually replace the MK153 Shoulder-Launched Multipurpose Assault Weapon (SMAW). (Sgt. Aaron S. Patterson/Marine Corps) 
A U.S. Air Force F-16 Fighting Falcon with the 52nd Fighter Wing receives hot pit refueling during a sortie surge exercise at Spangdahlem Air Base, Germany. A hot pit is the refueling of an aircraft while its engine is running, resulting in a speedy refuel to get pilots back into the air quickly. (Senior Airman Preston Cherry/Air Force) 
Soldiers hold folded American flags that will be present to family members during the service of U.S. Army Staff Sgt. Bryan Black in Section 60 of Arlington National Cemetery, Arlington, Virginia. Black, a native of Puyallup, Washington, was assigned to Company A, 2nd Battalion, 3rd Special Forces Group (Airborne) on Fort Bragg, North Carolina when he died from wounds sustained during enemy contact in the country of Niger in West Africa, Oct. 4, 2017. (Elizabeth Fraser/Arlington National Cemetery)
