US Air Force
SUSAN WALSH/POOL/AFP via Getty Images
Alex Babenko
Reuters
Ed Ram/For The Washington Post/Getty Images; Lev Radin/Pacific
Mikhail Svetlov/Getty Images
Vasily Koba
AP/Getty Images
REUTERS/Yulia Morozova/File Photo
Photo by Serhii Mykhalchuk/Global Images Ukraine via Getty Images