Weapone
Don 2n system early warning radar, missile defence, space surveillance
russian, missile, defence, space, surveillance, new, weapone, modernization, army, anti, ballistic, nato, war, target, a 135, elbrus, supercomputer, prototype, don, radar, ministry, defense, rocket, modification, experts, test, amur, sary shagan, prs, information, accident, upgrade, version, unique, advanced, electronic, equipment, battle, news, world, top, strike, combat, enemy, putin, show, heavy, orbital, best, system, launch, next, star, generation, science technology, system radar