ALIEN BASES
There are alien bases in Brazil, Argentina, the United States, the Aleutian Islands, China, the Arctic and Antarctica, New Zealand and Australia, Canada and those that are underwater in various oceans on the earth. There have been a number of bases within the United States. Some of these were closed by secret raids of government teams that were especially established to defuse the influence and presence of these bases, particularly during the 1960s and early 1970s.
These DELTA teams would go down into various caves to shut down certain computers and in the event they ran into any aliens inhabiting the caves, there would be an engagement. They were successful in some areas and failed in others. This occurred in many more areas than just the Dulce Base. Later these teams were stopped by MJ-12 and a cooperative effort was made to work with the aliens until it was again discovered that the aliens were not honoring their agreements and were not to be trusted. Most who were involved with such teams have since died for one reason or another, often under mysterious circumstances.
Many of those who were working to hinder the aliens were covertly killed, especially those who had special skills in raiding these caves. Most caves in the United States in general are usually safe unless there are straight, carved walls and smooth floors. Those are generally artificially created entrances to an underground base. They should be avoided unless you would like to end your existence. Likewise, those who see a spacecraft would be foolish to walk up to it or approach it. Those who have been abductees do not usually report great benefits from the experience. Generally, abductees have been used as guinea pigs for experimentation and have disappeared permanently. Many of the missing children have, in fact, been taken by aliens.