I was an artillery FO in Germany in the 70s and back as a Cav Sqdn S-2 in the mid-80s. I recall the French and Germans having the Roland anti-aircraft missile system that worked quite well. I recall that the US bought a battery or two to test out, but Congress said “No” due to it ‘not being designed in USA,” even after they mounted the Roland launcher on a M-109 artillery chassis. The Germans also came out with the Gepard, twin 35mm AA tank during that time frame.
Roland: https://en.wikipedia.org/wiki/Roland_(missile)
Gepard: https://en.wikipedia.org/wiki/Flakpanzer_Gepard
Gepard was awesome, we did gunnery with them on the Baltic Sea range north of Kiel, a place called Todendorf. They never failed to impress.