The last US soldier to die by enemy action (Nazi Werewolves ... and no not the supernatural kind!) was in 1947.
Daddy said that during the war, they would sometimes hear German soldiers howling like wolves. He said they were pretending to be werewolves.
The Americans knew what they were doing and basically just thought it was interesting.
It’s a nearly forgotten incident but 8 American fishermen were killed when their trawler dredged up a WWII german torpedo that exploded when the net it was caught in was brought into the boat. Happened on July 23rd 1965 almost 20 years after the war ended. https://www.pressherald.com/2015/07/23/tragic-sinking-of-portland-trawler-still-vivid-50-years-later/