Have friends encountered a "UFO" incident? In the 1970s, a US Air Force sergeant had a terrifying "UFO" encounter.

At the time of the incident, he and his companions saw strange phenomena, so that after many years passed, he still could not completely get rid of the "nightmare" that day.

The U.S. Air Force sergeant, named Mario Woods, served in the Air Force from 1975 to 1983, according to himself. In 1977, he was a member of the Security Response Team at Ellsworth Air Force Base in South Dakota.

At about 10:45 p.m. on the day of the incident, Woods' squad received an alert call from launch control officials. Woods immediately told his captain Michael Johnson about the incident. After a while, the two were ordered to investigate the area around the missile silo.

As the pair drove onto Highway 79, they immediately noticed something was wrong, as the entire sky seemed to be lit up.

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