The Byelokoroviche Incidence is an UFO-incidence, which occurred on October 4, 1982 over Byelokoroviche ICBM-base in Ukraine. At this day, a saucer shaped UFO, which was according to witness Vladimir Matveyev, who was radio operator on the base as large as a 5 story-building hovered over the base and interrupted all radio communication signals and mutually even burnt the radio equipment.
In the control room suddenly all lamps lit up indicating that missiles were prepared for launch to their programmed targets. Had this happened, it would have started the World War III. Normally such an action is impossible without an order from the Kremlin. An immediate call there showed tht no such order was given. 15 seconds later, the controls reset to normal position.