Ключевые слова: abstract, air, airplane, alert, army, circle, control, danger, defense, detect, detection, direction, discover, display, fly, global, glowing, graphic, green, guidance, guide, illustration, locate, military, missile, monitor, navy, north, pilot, plane, radar, radio, range, room, scan, scanning, screen, search, signal, sonar, submarine, system, target, technology, terrorism, traffic, war, warning, weapon,