The trial flight of the next-generation of the Arrow (Hetz) ballistic missile interceptor, carried out a early Monday, represented a powerful upgrade of Israel’s multi-tier defense  system that includes Iron Dome against missile threats,  from Iran or Syria, said the Defense ministry. The US-backed Arrow is designed to shoot down incoming missiles at altitudes high enough for unconventional warheads to disintegrate safely. The Pentagon’s missile defense agency and the US Boeing are partners in Arrow. The Pentagon’s missile defense agency and the US Boeing are partners in Arrow.