b'Sources
https://en.wikipedia.org/wiki/Japanese_submarine_I-402
https://en.wikipedia.org/wiki/I-400-class_submarine
https://www.janes.com/defence-news/news-detail/autonomous-uav-winch-trialled-at-awe-for-british-army
http://www.celebrateboston.com/ufo/first-ufo-sighting.htm
https://www.thinkaboutitdocs.com/1968-march-ufo-alien-sightings/'