What The Russians Did With Their Crashed UFO, by Mark Hammons

List of reported UFO sightings - Wikipedia

X-Files' Premiere UFO Crash

In 1947, A High-Altitude Balloon Crash Landed in Roswell. The Aliens Never Left, At the Smithsonian

Falcon Lake incident is Canada's 'best-documented UFO case,' even 50 years later

UFOs Present a Clear Threat to U.S. National Security, Officials Say, National News

Russian missile or UFO? Mystery object crashes in Poland: Report

Pentagon UFO report says most sightings 'ordinary objects' and phenomena

How the Pentagon Started Taking U.F.O.s Seriously

World UFO Day: History, Significance And How To Celebrate

Little Green Men: A Look at the Official Soviet X-Files Investigation - The Moscow Times

US conducted 'multi-decade' secret UFO program, ex-intelligence official says, House of Representatives

UFO Fever Is Taking Over Congress - The Atlantic

Close Encounters With UFOs Described to Congressional Committee - Bloomberg

Much of the information about UFO’s and Ufology in general appears to originate in the USA, but in this important new book, authors and researchers

RUSSIA'S ROSWELL INCIDENT: And Other Amazing UFO Cases From the Former Soviet Union