[Boromir88]

To add onto Raynor's post, later on in Tolkien's writings he does show us more of a 'battle-prowess' with Galadriel that may not have been noticeable in The Silmarillion or LOTR:

Her mother-name was Nerwen 'man-maiden,' and she grew tall beyond the measure of even the women of the Noldor; she was strong of body, mind, and will, a match for the loremasters and the athletes of the Eldar in the days of their youth.~Home XII, Late Writings

Even after the merciless assault upon the Telerin and the rape of their ships, though she fought fiercely against Feanor in the defense of her mother's kin, she did not turn back.~ibid

A queen she was of the woodland Elves, the wife of Celeborn of Doriath, yet she herself was of the Noldor and remember the Day before days in Valinor, and she was the mightiest and fairest of all the Elves that remained in Middle-earth."~The Silmarillion, of the Rings of Power