A Belgian Air Force F-16, the type scrambled after a radar contact on 30-31 March 1990 Ronnie Macdonald from Chelmsford, United Kingdom, CC BY 2.0, via Wikimedia Commons
Gendarme patrols near Eupen reported large, silent triangular objects with bright lights, starting months of similar reports across Belgium. On the night of 30-31 March 1990 the Belgian Air Force scrambled two F-16s after a radar contact; the pilots saw nothing and the object was never identified.
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