Da'an was an influential member of the Taelon Synod who was appointed as the American Companion and the United Nations Companion upon the Taelons' arrival at Nu'unni Earth and joining the Alliance. His headquarters were in Washington near the Washington Monument. Da'an swiftly proved to be amongst the most popular of all the Companions. This high profile, combined with the difficulties in serving as the Companion to a region as diverse and complicated as America, necesscitated Zo'or being assigned as the United Nations Companion. Da'an was also the Taelons' foremost expert on Ma'el and his work, and was secretly in charge locating Ma'el's Tomb and his remains.