Ключевые слова: 1d, action, aerial, air, aircraft, armed, army, assault, attack, aviation, background, bell, bell uh, bell uh 1d, bell uh1, black, chopper, combat, danger, defense, emergency, flight, fly, force, helicopter, horizon, landscape, military, navy, rescue, rotor, shadow, silhouette, sky, soldier, soldiers, special, sun, sunset, surgery, technology, transport, transportation, travel, uh, warfare, was,