Debellatio (also debellation) (Late Latin "Defeating, or the act of conquering or subduing", literally "warring (the enemy) down", from Latinbellum "war") designates the end of a war caused by complete destruction of a hostile state.
In some cases debellation ends with a complete dissolution and annexation of the defeated state into the victor's national territory, as happened at the end of the Third Punic War with the defeat of Carthage by Rome in the second century BC[1].
The unconditional surrender of the Third Reich – in the strict sense only the German Armed Forces (Wehrmacht) – at the end of World War II has been cited as a case of Debellatio. [2][3][4][5] This however is not the universal view and other authorities have argued that as most of the territory that made up Germany before the Anschluss was not annexed, and the population still existed, the vestiges of the German state continued to exist even though the Allied Control Council governed the territory; and that eventually a fully sovereign German government resumed over a state that never ceased to exist.[6]
Anne Armstrong. "Unconditional Surrender: The Impact of the Casablanca Policy upon World War II", Greenwood Pub Group 1974, ISBN 0837170427
Brett H. McGurk A Lawyer in Baghdad(PDF) Footnote I on Page 3: argues that "The unconditional surrender of Germany and Japan supported the application of debellatio, a concept that is discredited in the international legal community and would not easily transfer to Iraq. No Coalition member, in any event, argued that debellatio applied in Iraq."
ICRCCommentary on Protocol Additional to the Geneva Conventions of 12 August 1949, and relating to the Protection of Victims of International Armed Conflicts (Protocol I), 8 June1977. Commenting on the term "The general close of military operations" in Article 3.b of Protocol I the ICRC states in their commentary in footnote 5 "Some of the literature refers to this situation ['The general close of military operations' when the occupation of the whole territory of a Party is completed, accompanied by the effective cessation of all hostilities, without the necessity of a legal instrument of any kind] as 'debellatio', but this is a narrower interpretation of the term than other publicists ascribe to it. On the concept of 'debellatio' and the various definitions of this term, cf. K.U. Meyn, 'Debellatio', in R. Bernhardt (ed.) Encyclopaedia of Public International Law, Instalment 3, p. 145;"
^ United Nations War Crimes Commission, Law reports of trials of war criminals: United Nations War Crimes Commission, Wm. S. Hein, 1997, ISBN 1575884038. p.13
^ Detlef Junker et al (2004). The United States and Germany in the Era of the Cold War, 1945-1990: A Handbook (Vol 2), Cambridge University Press and (Vol. 2) co-published with German Historical Institute, Washington D.C., ISBN 052179112Xp. 104