The Finnish, Swedish, British, U.S., and Greek militaries conducted investigations into 'ghost rockets' during a Scandinavian wave of sightings between 1946 and 1947.

Authors

• Person: Not available Organization: Wikipedia
  Unidentified flying object - Wikipedia

Sources

• Unidentified flying object - Wikipedia en.wikipedia.org Wikipedia via serper

Referenced by nodes (1)

• United States military entity