The public rarely hears about interactions between military personnel and unexplained aircraft — especially during wartime.
As time goes on, however, UFO stories stuck behind red tape begin to see the light of day. The Vietnam War saw its share of UFO activity in the 1960s.
One close encounter, in 1968, involved the crew of an American patrol boat that reported two glowing circular craft following them in the demilitarized zone that separated North and South Vietnam
Read the entire article by Lee Speigel on the Huffington Post http://huff.to/1bhjudQ