Iranian President Hassan Rouhani gives a joint press statement at Hofburg Palace on July 4, 2018 in Vienna, Austria. (Photo by Michael Gruber/Getty Images)
The sun sets behind an Australian F-35A Lighting II at Luke Air Force Base, Arizona, on June 27. (U.S. Air Force photo by Staff Sgt. Jensen Stidham) Note: This image was created by placing a reflective surface in front of the the camera lens.
Ukrainian Sukhoi Su-27: The Sukhoi Su-27, NATO codename “Flanker,” is a twin-engined air superiority fighter of legendary reputation, particularly for its trademark “Cobra” maneuver where the aircraft momentarily flies backwards. Still in production more than 30 years after first deliveries to the Soviet Air Forces began, the Su-27 is in service with a dozen air arms.
NATO Secretary-General Jens Stoltenberg, U.S. President Donald Trump, and British Prime Minister Theresa May at a NATO summit in Brussels on July 11. (Sean Gallup/Getty Images)
An entrance to Fort Bliss is shown as reports indicate the military will begin to construct temporary housing for migrants. (Photo by Joe Raedle/Getty Images)
Astronaut Bruce McCandless II participates in an extravehicular activity outside the Challenger shuttle during the STS-41B mission in April 1983. (NASA)
