You have a peculiar take on historical facts.

The invasion of Poland was sept. 1939. The initial US supply of England began in 1940.

In addition to war material and humanitarian support, in the time from 1939 to Dec 7 1941, hundreds of Americans volunteeered and joined the English forces to fight the Germans.

Likewise American volunteers were engaged well ahead of official entry to conflict in the pacific/asia.

I wonder how many nordic model volunteers showed up?

Sweden allowed the nazis to use their rail-transportation to move military units to fight the russians. I suppose in the cold war the soviets didnt invade sweden was the same reason they didnt invade mexico.