In this Wednesday, Nov. 8, 2017 photograph released by the U.S. Defense Department, German soldiers assigned to Surface Air and Missile Defense Wing 1, fire the Patriot weapons system at the NATO Missile Firing Installation in Chania, Greece. Online videos are raising new questions about Saudi Arabia’s claims that it has intercepted nearly every ballistic missile launched by Shiite rebels in Yemen with its own Patriot missile systems. (Sebastian Apel/U.S. Department of Defense, via AP)