A soldier attending The United States Army Air Assault School prepares to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A soldier attending The United States Army Air Assault School prepares to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A soldier attending The United States Army Air Assault School attaches cargo beneath a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers attending The United States Army Air Assault School march to class at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate a 40 pound demolition charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) prepare a 40 pound demolition charge for detonation during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), advances toward an objective during a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate an explosive breeching charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), pauses to observe an objective during a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), participates in a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate a explosive breeching charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), participates in a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), advances toward an objective during a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), participates in a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

A soldier assigned to 1st Battalion 327th Infantry Battalion, 101st Airborne Division (Air Assault), conducts an after active review following a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) familiarize themselves with the MK19 automatic grenade launcher during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

A U.S. Army soldier assigned to 101st Airborne Division (Air Assault) performs a functions check on an M2 heavy machine gun during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) familiarize themselves with the MK19 automatic grenade launcher during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

A U.S. Army soldier assigned to 101st Airborne Division (Air Assault) throws a practice hand grenade during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) performs a functions check on a shotgun during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) train on The Javelin Close Combat Missile System during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) train on The Javelin Close Combat Missile System during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

A U.S. Army soldier assigned to 101st Airborne Division (Air Assault) throws a practice hand grenade during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) train on The Javelin Close Combat Missile System during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) train on The Javelin Close Combat Missile System during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

U.S. Army soldiers assigned to 101st Airborne Division (Air Assault) train on The Javelin Close Combat Missile System during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

A U.S. Army soldier assigned to 101st Airborne Division (Air Assault) throws a practice hand grenade during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

A U.S. Army soldier assigned to 101st Airborne Division (Air Assault) throws a practice hand grenade during Expert Infantryman Badge training at Fort Campbell, Kentucky. U.S., December 5, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), prepare for a training mission during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

A solider assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participates in a road march during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), prepare for a night mission during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

A soldier assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), looks through a night vision device during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participate in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY

A soldier assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), prepares for a night training mission during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

First Sergeant Warren Jenkins, assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), conducts a patrol through a swamp during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

A soldier assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), takes shelter from the rain during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participate in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), prepare for a night training mission during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), rest during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participate in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), are seen during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), conduct a road march during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

A soldier assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participates in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participate in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), plan a mission during a tactical leader's training exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston

Senior leaders assigned to the U.S. Army's 3rd Brigade, 101st Airborne Division (Air Assault), participate in a training during a tactical leader's exercise at Eglin Air Force Base, Florida, U.S., August 27, 2019. Picture taken August 27, 2019. REUTERS/Bryan Woolston