But exactly - Ukraine's defence contractors and suppliers have to innovate, and do it on the cheap. As a result there will be lots of lessons to learn, and afte

But exactly - Ukraine's defence contractors and suppliers have to innovate, and do it on the cheap. As a result there will be lots of lessons to learn, and after the war, hardware and concepts to sell (like Israel does, it's a top military exporter because it has had to develop and innovate). Also, the US has shown it can stomach its pride and buy foreign off the shelf designs which are better (okay, not always, cf. the KC-45 vs KC-46, but still). And of course there's the whole rest of the world.