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Z8b5D TIL that in the mid-1990s, a man in Montana was able to build fully armed Cobra attack helicopters out of supposedly demilitarized military surplus parts. He then used them to hunt coyotes.
B4OW TIL a US Army pack mule that was shipped to Asia during WWII was captured by Americans six years later during the Korean War. The mule likely served in three different wars (WWII, Chinese Civil War, Korean War) and for three different armies (US, Nat. Chinese, Communist Chinese).
KQDR TIL that British Paratroopers on D-Day discarded their 9mm Sten Guns for captured German MP 40s as the Sten Gun was horrifically unreliable, whereas the Schmeisser was an excellent SMG