Israel has successfully upgraded its Iron Dome missile defense system. The Israeli Defense Ministry said a series of tests in southern Israel checked the Iron Dome's capability of intercepting several targets simultaneously. 

Iron Dome is an array of missile batteries designed to intercept short-range rockets. It was first declared operational in 2011 and has reportedly shot down 90 percent of rockets launched from Gaza. Analysts say the system is a game-changer in the Gaza Strip conflict.