If brazil joined the axia, they would be within range to bomb th panama canal. Plus the germans would have bases to refuel their u boats in the south pacific. Also if Brazil joined I think a few other south american nations mited of followed their lead and joined the axis.

__________________
"Front leaning rest position"
"Move"
"In cadence, exercise....1, 2, 3" (My favorite thing to hear at 5 in the morning.)