 Evarts wanted his war service to focus on saving lives, and he served as a surgeon with the United Nations Relief and Rehabilitation Association in Algeria.Bored by a lack of surgical cases, he requested and was assigned by the Friends Ambulance Unit (Quaker) to the bombed-out city of Tenchung, China.There, in a converted ancestor worship temple, he directed a hospital and clinic and, along with an international medical team, treated civilians, as well as Chinese and American military personnel.