Ukrinform/NurPhoto via Getty Images
Reuters
Sergei Guneyev/Pool/AFP via Getty Images
Contributor via Getty Images
AP Photo/Martin Meissner, File
Diego Herrera Carcedo/Anadolu via Getty Images
US Army/Sgt. Patrik Orcutt
JONATHAN NACKSTRAND via Getty
Nancy Jones-Bonbrest/Missile Defense Agency