Well, the whole “cruise missile” warfare for the Navy and Army started with the remake of the German V-1 into US flying German V-1’s, US making copies of the original to support the Japanese invasion, then US-improving the V-1 into new models, which became the Loon, then its replacements through Navy’s Regulus, Snark, etc.
Just like US Army shooting off captured V-1’s at White Sands/El Paso, then building improved V-1’s, then building the Redstone and Jupiter, then the Atlas, Saturn’s engines, etc. Yes, the original machinery concept was German, but the US flying models improved on that foundation.
There were a couple of attempts by the USN and the Army playing catch-up, to develop a “flying torpedo”/”flying bomb” during WWI.
Basically a mini-biplane. Development petered out after the Armistice.