Pay in Nazi currency (and our own reparations in Confederate money).
Hey, don’t knock Nazi coin! Third Reich 5-Mark pieces are all over the internet, 900 fine silver, not that expensive since there are so many out there. Lots from Eastern Europe.
Dad brought back a bunch from WWII. Polished up bright, I had assumed they were ersatz alloy like the West German stuff I used to carry over there.
Heck, these ought to be circulating in Russia since their paper ruble is worthless (whatever became of Imperial silver rubles?)
Silver coinage works when nothing else will. The Japs conquered the Philippines but their occupation scrip became worthless since millions of Philippine silver pesos were still reappearing & circulating.
Anyway, good luck to the Greeks with reparations.