When I studied history - 20th Century - you had to learn quite a few foreign words. Putsch was one (Munich, beer hall etc).
Lebensraum,
Autarky,
Untermensch,
Wermacht,
Reich, Volk, Fuhrer ..
Anschluss,
Nacht und Nebel,
as Arnie said, Kristallnacht
etc etc
we also learned Russian and Chinese words. And I had my DF for the Italian words 
If you want a glimpse into your fellow citizen it's an interesting exercise to see how many people who lived through the 80s (or claim to have) can still remember Glasnost, if not the twin pairing of "Glasnost" and "Perestroika" ? Plus what they mean. These days I find it's a "You what ?" even from people my age. Does make you wonder.
Even in 2020 we had another foreign political phrase emerge: Gilets Jaunes