Originally posted by karajorma
I'd never heard of mexico's involvement in WWII. What did they do?
not much, probably

Hitler did offer support to a Mexican invasion of Texas / New Mexico, though - he sent a message offering financial and even military support when it was looking increasingly likely that the Us would join in the fighting (to distract the Us and open a second front, obviously).
the south amercian allies were, IIRC, allied with the Axis even though they never fought. Hence why the Nazis fled to Argentina, in particular. I think the Royal Navy destroyed a German cruiser in a port in neutral Uruguay (who wouldn't let it repair and soforth because of their nuetrality).