Iron Dome doesn't work against ballistic missiles. It's designed for much smaller, much shorter range projectiles. One of the difficulties in ballistic missil

Iron Dome doesn't work against ballistic missiles. It's designed for much smaller, much shorter range projectiles. One of the difficulties in ballistic missile defense is actually destroying the warhead. Because it is ballistic, hitting the missile and destroying the body during the terminal phase isn't good enough. The structure is essentially dead weight at that point; the warhead is still on track (roughly) to its target. That's why current ABM systems focus on boost-phase interception, because then a body hit completely throws off the missile trajectory.