The word "warrior" is relevant here because that's what she was born to be, according to DC creative chief (and amazing comics writer) Geoff Johns, who debuted the footage to an awed Kevin Smith (he always looks that way, though) during CW's Dawn of the Justice League special. He calls her the "best fighter in the DC universe" because she's been trained all of her life.
As previously learned from Chris Pine's comments and seen in small amounts in this footage, the film is set during WWI and is basically an origin story, recounting her time on the island of Themyscira, and the eventual journey she takes to America to see if mankind is worth protecting. Apparently we are. Go team.
Directed by Patty Jenkins with Robin Wright, Danny Huston, David Thewlis, Ewen Bremner, Said Taghmaoui, Elena Anaya, Lucy Davis, and Connie Nielsen co-starring, Wonder Woman opens June 23rd 2017.