NATO and Ukraine are teaming up in a race to field cheap, quick-turn defenses against some of Russia's toughest weapons to stop - glide bombs and drones guided by fiber-optic cables. Several of these projects are already in testing, military officials directly involved told Business Insider, with the aim of protecting Ukraine now and equipping NATO with new tools for a future fight. The clock, however, is constantly working against them. The war in Ukraine is moving fast, with both sides rapidly developing new weapons and tactics. By the time a countermeasure is ready, it risks being outdated.