An Israeli Air Force F-35 Lightning II fighter jet performs during an air show at the graduation ceremony of Israeli air force pilots at the Hatzerim Israeli Air Force base in the Negev desert, near the southern Israeli city of Beer Sheva, on December 27, 2017. The Israeli military has used its newly acquired F-35 stealth fighters in combat making it the world's first to do so, the air force commander said on May 22, 2018. / AFP PHOTO / JACK GUEZ