http://en.wikipedia.org/wiki/Brazili...itionary_Force
Wikipedia sucks alright, but I can't find the good link I had in English, anyway, that article seems to be about right except for the small introduction of Vargas, he was a very complex character afterall.
Anyway, quickly raised, poorly trained (comparatively speaking), small in numbers, joined the Americans in Italy and after the war they were disbanded and abandoned by Vargas as he feared they became an influencial political force to coup him and establish true Democracy back in Brazil too, since they fought for it in Italy, what an irony.
EDIT: Well, that link misses a curiosity, the trip to Italy was terrible, the ship was severly over-loaded with men and by the time they reached Italy the soldiers were so battered and tired they disembarked in a mess, with a very bad mood, they were also wearing older uniforms, so when the Italians noticed that sad mass of poor morale grey soldiers they thought they were German prisioners and shouted insults and threw rocks at them, ungratefull to say the least. :P