UFO researcher Robert Hastings discussed declassified documents, as well as witness testimony that confirms UFO incursions at nuclear weapons sites. UFO activity accelerated after WWII, around the time that the testing and deploying of nuclear weapons began in America. Initially, the premise was that the unidentified craft were Soviet devices, though Hastings became convinced "we're dealing with multiple races from multiple worlds."
He said he's had contact with over 100 military employees who knew of UFO activity that occurred when they worked at various facilities between 1964 and 1996. There was an incident at Malmstrom AFB in March 1967 where a large red disc-shaped object was seen over the missile area, and all 10 missiles simultaneously went offline. This technological display of shutting off the missiles seemed to be sending a message or "wagging a finger," he commented.
Conversely, missiles suddenly went into launch mode at Minot AFB when a bright object was seen over the launch site. A similar episode in Soviet Ukraine occurred in October 1982, when missiles were suddenly activated at an ICBM base while a saucer-shaped object was observed nearby. A 1964 test of a nuclear missile sent across the Pacific Ocean was said to be thwarted in progress by a UFO, and the incident was purportedly captured on film.