Relinquishment of United States nationality encompasses relinquishment of United States citizenship. A waiver is the voluntary relinquishment or surrender of some known right or privilege. In contrast, "voluntary loss", often called "relinquishment" or "renunciation", is initiated by the citizen. It includes only public figures who completed the process of relinquishment of United States Citizenship. Both citizens and non-citizen nationals may undertake the process of relinquishment of United States nationality. However, there is still a necessity to investigate interventions to prevent companion-animal relinquishment. The graph above presents statistics on relinquishment of U.S. citizenship from three sources. Only slowly PD software authors started to include explicit relinquishment or license statement texts. This was probably due partially to his relinquishment of absolutism and partially to his personality. Garcia successfully negotiated for the United States' relinquishment of large military land reservations. Historians commonly attribute failing health as the reason for his relinquishment of command to Brig. Most experts believe relinquishment is extremely unlikely.