In April 1997, Dr. Greer held the first of several Disclosure conferences in DC .

At that time it was not called "The Disclosure Project" but was called "Project Starlight".

Prior to these conferences, he wrote the "UNOD" letter.

This type of letter states that , "Unless Otherwise Directed" one may legally proceed with the actions presented in the letter with the implied consent of those receiving the letter - in this case the declaration that the secrecy oaths of those involved with unacknowledged, constitutionally illegal UFO projects were themselves null and void and that military and government top secret witnesses and documents could be disclosed without penalty. Since the underlying projects themselves were managed illegally then witnesses to those projects were free to speak publicly about them without legal repercussions or violations of the secrecy laws.

https://siriusdisclosure.com/cseti-papers/letter-to-president-bill-clinton-1996/