DEBELLATIO
debellatio (deb-<<schwa>>-lay-shee-oh). [Latin] Int’l law. A means of ending a war and
acquiring territory when one of the belligerent countries has been so soundly defeated that its
adversary is able to decide alone the fate of the defeated country’s territory; conquest followed by
annexation. — Also termed subjugation.
“[There are] three possible alternative meanings of debellatio in international law. The first is
that debellatio denotes the change wrought by the conquest and total subjugation of a State
together with that State’s annexation by the conqueror. The second view is that debellatio
corresponds to the total defeat of an enemy State, its occupation, and the elimination of a vital
component of Statehood; in this view, debellatio implies the extinction of the old State, but it
leaves open the legal future of the occupied territory (annexation or the founding of one or more
new States). The third view is that debellatio only describes a factual situation and that even the
elimination of all the State organs combined with the occupation of the territory does not exclude
the continuing existence of that State. It is mainly the second and the third meanings of debellatio
which have been advocated for the situation of Germany since the end of World War II.”
Karl-Ulrich Meyn, “Debellatio,” in 1 Encyclopedia of Public International Law 166 (1992). [Blacks Law 8th]