An image made available by propaganda Islamist media outlet Welayat Tarablos on February 18, allegedly shows members of the Islamic State militant group parading in a street in Libya's coastal city of Sirte. (AGENCE FRANCE-PRESSE/GETTY IMAGES)
People's Liberation Army (PLA) soldiers during a reporting trip to the Third Guard Division of the PLA on July 28, 2009 in Beijing, China. (Feng Li/Getty Images)
A Standard Missile Three (SM-3) is launched from the guided missile cruiser USS Shiloh during a joint Missile Defense Agency, U.S. Navy ballistic missile flight test June 22, 2006 in the Pacific Ocean. (Chris Bishop/U.S. Navy via Getty Images)
US navy warship, forward-deployed Ticonderoga-class cruiser USS Chosin (CG 65), docks at the Sydney Harbour in front of the Harbour Bridge on October 4, 2013. (SAEED KHAN/AFP/Getty Images)