Israel has successfully upgraded its Iron Dome missile-defense system, the Defense Ministry said Thursday, without elaborating on the specific improvements.

A series of tests was performed to “widen the capacity and improve the performance” of the system, the Defense Ministry said in a statement. It added that Israel faces “an unprecedented array of threats” presumably ranging from mortars to long-range missiles from a variety of origins.

The Iron Dome system was developed, after much nay-saying, to counter the rocket threat from Gaza, a territory from which Hamas and other organizations have fired since 2001 upward of 15,200 projectiles at Israel. Sped to the field in a near unfathomable four years, the Rafael-made system was built to counter rocket threats from four to 70 kilometers away. […]