Nothing of substance. The UFO problem stretches back decades, but it appears that this has been forgotten. They are reinventing things as if this never happened prior to the last 10 years.
Starting in 1948, a series of publications that went by the acronym JANAP were Joint Army Navy Air Publications. These were given to military personnel. They gave instructions regarding what to report.
The following is an extract from JANAP 146(C) of 10 March 1954:
2. JANAP 146(C) COMMUNICATION INSTRUCTIONS FOR REPORTING VITAL INTELLIGENCE SIGHTINGS FROM AIRBORNE AND WATERBORNE SOURCES, is effective upon receipt and supersedes JANAP 146 (B), COMMUNICATION INSTRUCTIONS FOR REPORTING VITAL INTELLIGENCE SIGHTINGS FROM AIRCRAFT (CIRVIS) and all other conflicting instructions. JANAP 146(B) shall be destroyed by burning. No report of destruction is required.
CHAPTER II
CIRVIS REPORTS
SECTION I - GENERAL
201. INFORMATION TO BE REPORTED AND WHEN TO REPORT
a. Sightings within the scope of this chapter, as outlined in Article 102b(l), (2), and (3), are to be reported as follows:
(l) While airborne (except over foreign territory - See Article 212).
(a) Single aircraft or formations of aircraft which appear to be directed against the United
States, its territories or possessions.
(b) Missiles.
(c) Unidentified flying objects.
(d) Submarines.
(e) A group or groups of military surface vessels.
(2) Upon Landing.
(a) Individual surface vessels, submarines, or aircraft of unconventional design, or
engaged in suspicious activity or observed in an unusual location or following an
unusual course.
(b) Confirmation reports.
202. SIGHTINGS NOT TO BE REPORTED
Reports are not desired concerning surface craft or aircraft in normal passage, or known U.S. military or government vessels and aircraft.