Triangles In The Sky - What Are They?

It started with a classified briefing by the Unidentified Ariel Phenomena task force UAPTF to educate the defence personals in May 2020. In the briefing, a sighting detailed observation of a triangle-shaped craft was reported as filmed by crew of the USS Russell off the coast of San Diego in July 2019...
Is there anything new? These crafts have been sighted since at least the late 70s and as recently as 2018 in Northern Italy, as our investigation shows...