@lina @Doma For the most part, the only ones that weren't part of the export restricted "leaked" ones were some of the classified stuff surrounding the Challenger 2's armor, the armor on the Eurocopter Tiger, the Chinese MiG-21F copy J-8, a French tank's rotation speed, and a couple Chinese tank and ammunition specifications. Might be missing a couple but I don't know which one of the US ones are just export-restricted or actually classified.

I'm not counting the MiG-29 leak because that's only classified in Russia iirc, and other former Pact members declassified them a long ways back.