FILE - In this July 20, 2016 file photo, a masked Palestinian militant from the Izzedine al-Qassam Brigades, a military wing of Hamas, stands in front of rocket launchers during a weapon exhibition at a Hamas-run youth summer camp, in Gaza City. Over the years, the Islamic militant Hamas group has built up a large arsenal of rockets and missiles that have evolved from rudimentary short-range projectiles into powerful weapons capable of striking virtually anywhere in Israel. (AP Photo/Adel Hana, File)