Anchor incidents include the 30–31 March 1990 Belgian F-16 radar engagement (the culmination of the November 1989 Belgian wave), the June 1994 Ariel School incident in Zimbabwe (62 schoolchildren report a structured craft on the schoolyard, with formal interviews by Harvard psychiatrist John Mack), the January 1994 State Cable Kazakhstan case (a US State Department diplomatic cable describing a Kazakh military UAP encounter, FOIA-released in 2010), and the March 1997 Phoenix Lights.
The COMETA report — formally 'Les OVNI et la défense: à quoi doit-on se préparer?' — was produced independently of GEIPAN by a panel of retired French Air Force generals, Gendarmerie officers, and CNES officials. It is the first publicly-released national-level UAP threat-assessment in any Western country and remains in active citation.
Why this matters. The 1990s is when the international UAP record produces material that survives institutional review and reaches the open literature without being filtered through US Air Force communications. The COMETA report and the Belgian Air Component's open press conference are the foundational late-Cold-War precedents.