So... that would make them exactly the wars in Iraq and Afghanistan. If that were the case we wouldn't have to imagine, we'd have the results in the field already.
So that war must be of a different kind. Not the kind where you already have technical superiority and have 0 incentive to develop it because you can already make truckloads of money by supplying current generation equipment to the front lines. It has to be a war where developing the new tech is the difference between your country existing or not a decade or more from now.
That's a special kind of war. It could be a cold war but it's unlikely to have one of those in the same way the one from the 20th century unfolded. And if that kind of "hot" war is the only one that can bring these improvements I'd rather stick to driving my own car and labeling my own photo library :).