Preliminary tests of a system in which drones automatically exchange target data with each other has been conducted at a testing ground MOSCOW, April 14. /TASS/. A system employing group-based strike drones, which recently completed preliminary tests, could in the future be used to evade air defenses and ensure the destruction of complex targets, the press service of Russia’s state tech corporation Rostec reported. It said that preliminary tests of a system in which drones automatically