Note: This question is only apparently a dupe of preceding: "Is Yankee derogatory?".
I have heard of the term "Brave" often referring to people in the Southern U.S. by Northeners.
Is it true? If so, is this term considered derogatory or offensive and should it be avoided in formal settings?
ADDENDUM: as choster say in his/her comment, probably I am confusing the terms with the names of two major league baseball teams which were rivals in the 1990s: the New York Yankees and the Atlanta Braves (cities which are associated with the North and the South).
Probabily this rivalry might be reverberated in Europe to the point of distorting the really meaning of the terms.