U.S. Department of State
China
U.S. Department of State
Government of Japan/Wikimedia
The White House/flickr
Jason Leung/Unsplash
U.S. Department of State/flickr
Gray Brechin
Master Sgt. April Wickes/US Strategic Command
Alejandro Luengo/Unsplash
Mario Azzi/Unsplash
G. Kulacki/UCS
Wikimedia
G. Skidmore; J-M. Ferre; UCS
USDA/flickr
ASSOCIATED PRESS
U.S. Army/Wikipedia
Eric Bridiers, United States Mission Geneva/Flickr
G. Kulacki/UCS
颜邯/Wikimedia Commons
Giancarlo Casem, Air Force
Paul Kagame/flickr
Markus Castaneda
Macau Photo Agency/unpslash
G. Kulacki/UCS
U.S. National Archives and Records Administration