During the 1980s - multiple alien groups became more active in the world because of the nuclear tests in the 1940s and 1950s. The UFO entities then slowly began to infiltrate and attempt to take control or influence of all the major countries governments worldwide.
Most encounters since 2010 suggests our Earth has become a center point for alien visitors from multiple planets and galaxies. Many visiting our planet for good purposes, and others for selfish reasons. Some aliens our held here as a type of prison such as the fallen angeles (servants of the true one GOD).These "fallen angeles" become imprisoned after the 2nd War of Angels before the flood during the book of genesis period of humanity.