[2] It was evaluated on the Stryker Infantry Carrier Vehicle, with two systems undergoing tests by the U.S. Army: one at Aberdeen Proving Ground in Maryland and the other at Redstone Arsenal in Alabama.

As projectiles came into close range, the optical sensor tracked it within 1 cm (0.39 in) of accuracy to select an aim point and determine which ballistic countermeasure to fire.

Artis claimed that the Iron Curtain could be enhanced to protect against “more challenging threats” such as the RPG-29 and RPG-32 ‘Hashim’ multipurpose anti-tank grenade launchers, which utilize tandem warheads for penetrating tanks with explosive reactive armor.

“We proved not only that Iron Curtain defeats threats and saves lives, but the risk from collateral damage is minimal, especially when compared with the alternative," said the company's CEO, Keith Brendley.

[8] In 2016, the U.S. Army began an expedited effort to install and characterize several APS's, including Iron Curtain on the Stryker fighting vehicle, in preparation for fielding decisions.