The White Council assaults Dol Guldur?

[CSteefel]

Originally Posted by radagastly

his purpose was similar to that of the Istari, except with less innate power but more power to act.

This seems to be a good summary of Glorfindel. His main previous role was in 1975 of the 3rd Age where he drives the Witch King away. Even though the Istari were on hand at the time, they clearly were not leading armies against the forces of Sauron...