 He was the senior United States Government representative to the Global Health Security Action Group (composed of the G-7, Mexico, WHO, and the EC) from 2006-2009, and contributed to the establishment of a collaborative Medical Countermeasure Development Enterprise initiative of this group.In addition, Dr. Vanderwagen has served as the senior U.S. Government representative on the international Arctic Research Committee (1990–94) and was a consultant to the World Health Organization on Indigenous Health Issues (1997-2001).He was the U.S. Co-Chair for Healing Our Spirit Worldwide (2002-2003), an indigenous health effort to address behavioral and social diseases affecting indigenous communities.