I found this old website about early radio technology a few weeks ago. Some of its most interesting articles are these:
Both are interesting because very similar stories exist about 1940-1945. High frequency warfare is usually depicted as a WW2 thing, but it apparently began in WWI.
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The first article is also relevant to a topic that seems to interest quite a few people; why did the German military perform so out of proportion in both World Wars?
The answers aren't only in the German army's leadership and training system of the 1880's to 1943 period.
Germany was a leading country in physics, chemistry and engineering till the end of WW2. It's still strong in engineering (in fact, engineers play even an excessive role in the German economy) and its chemical industry is still strong as well. The physics research isn't outstanding any more, though.
It was the chemical industry that enabled Germany to fight in WW1 until 1918 because it substituted imported nitrogen (salpetre) with a process to extract the same from air. It provided Germany with coal-based substitutes for natural rubber and crude oil in WW2.
The engineering strength led to the great arms industries, the quick rise of the navy in 1898-1914, the ability to compensate for bomb damage on a never seen before scale (the arms and ammunition production of 1944 was much greater than that of 1943) and the huge surge of military-technical innovation of 1938-1945.
Strong research in physics enabled a strong electrical equipment industry which was almost capable of meeting the combined radio technology advances of Britain and the U.S..
Finally, Germany had and has the second-largest population in Europe, second only to Russia.
Judging by this history, we better hope that the next huge war of necessity strongly benefits financial 'industry' and other service-related skills and capacities, for that's what many NATO countries went for instead of old sustaining and expanding actual industry-related skills and capacities.