Wonder Woman Costume Change

Wonder Woman's golden eagle armor first appeared in the "Kingdom Come" mini-series by Mark Waid and Alex Ross.It's a story set in the future of the DC universe.In the story,Wonder Woman dons the armor when the inmates from a prison for super-villains escape and begin to riot.There's something special about the sword(I can't remember what,it's been awhile since I've read the book)as it can even cut Superman.

Since appearing in that story the armor has shown up from time to time in Wonder Woman's own monthly comic and is a sign that she has gone into full warrior mode.