In the early 1960s Soviet Union sold titanium to the US believing they needed it for Pizza Ovens but instead they used it to build the iconic SR-71 Blackbird Mach 3+ spy plane https://theaviationgeekclub.com/in-the-early-1960s-soviet-union-sold-titanium-to-the-us-believing-they-needed-it-for-pizza-ovens-but-instead-they-used-it-to-build-the-iconic-sr-71-blackbird-mach-3-spy-plane/