Humanitarian actions to help and protect victims of genocide are a form of resistance practiced by non-victims. The notion of righteousness, derived from the term Righteous among the Nations used by the Yad Vashem Jerusalem memorial dedicated to Holocaust victims, now refers to people who have risked their lives or freedom to save victims of genocide. The Righteous may come from various backgrounds and circumstances and work alone or as part of a group. Some are in positions of power, while others are ordinary people doing the best they can to help. By giving shelter, food, medical care or transport, these people bettered the lives of those oppressed.