The Pentagon released over 1,500 pages of previously classified documents related to its unidentified flying objects (UFO) program this week.
In 2017, The British tabloid newspaper The Sun requested information through a Freedom of Information Act request (FOIA) to the U.S's Advanced Aviation Threat Identification Program (AATIP).
The AATIP was focused on investigating unexplained aerial phenomena and was first made public in December of last year, although there had been speculation about its existence for several years before that.
On Tuesday, following the release of the 1,574 pages of documents by AATIP in response to the request, UFO expert Nick Pope spoke to NewsNation's Leland Vittert about what we know about the UFO phenomenon in the U.S.
To read more and view the video, click here.