The Franco-Prussian War of 1870-71; World War I; World War II. In the Strike Witches chronology, the World Wars were coalition fights against the Neuroi, so only the first happened something as it did in real life.

(And that's only up to 1946 - it's entirely possible that it happened again, perhaps more than once, between 1946 and 2410, but Gryphon's only speaking of events up to the timeframe he's currently in.)

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.