Thanks for that...
Yeah, despite the mess of diplomacy and its failures in the 1930's, there was a lot of trade among nations which soon were at war.
Stalin delivered materials to NAZI Germany right up to the day of Barbarossa (Hitler's attack into Russia.)
"Oh, by the way Josef, our Peace Pact no longer applies... yrs truly, Adolph."
I believe the neutral Swiss delivered Oerlikon cannon to both sides for a while, early in the fighting in Europe, too.
Such details are all part of what makes Scale modeling attractive, right?