trader_4 wrote:

That would obviously depend on the conditions at the time, who was
invading, and what their purpose was. If it was China invading tomorrow,
of course they would be treated as enemies. If the USA were to succumb to
some govt like the Nazis, that was committing genocide, and we were be
liberated by say the UK and Australia, I'd welcome them. See how easy
that is?

It's only easy if your world is black and white.