Roswell
Roswell was a small town in New Mexico, in the United States of America. In 1947, a Nedenah flying saucer crashed near Roswell and was salvaged by the United States Army. The crash became a cause celebre for decades among UFO and conspiracy theorists, due to government attempts at covering up the incident after it had been reported in the press.
In 1970, the Waro attacked the Army base there. (PDA: The Devil Goblins from Neptune)
A mileometer from the spacecraft later ended up in the collection of Henry van Statten (DW: Dalek).
In Prisoner of the Judoon Androvax stated that the ship the nanoforms were building was in face a recreation of the Roswell spacecraft.