While Aranthanien ch'Revash served aboard the Docana, the ship once came under attack by the Vertians, around 2160. (ENT - Rise of the Federation novel: A Choice of Futures) After the founding of the United Federation of Planets and the subsequent establisment of the joint Federation Starfleet in 2161, Docana continued its service as a Federation starship. In 2165, the Docana participated in the Evacuation of Ardan IV, where she fought against multiple Klingon warships. (ENT - Rise of the Federation novel: Live by the Code)