There have been many UFO incidents over the years, involving a wide range of phenomena that cover the spectrum from the explainable to the full-on bizarre. Some of the more intriguing UFO incidents are those that involve reliable witnesses and radar and military confirmation, and these are the cases that really make the imagination go wild. One such case played out in 2017 over Northern California and Oregon, involving an airborne intruder that baffled pilots and radar crews, and which would actually be engaged by F-15 fighter jets.\
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