<P> Declaration Regarding the Defeat of Germany and the Assumption of Supreme Authority by Allied Powers was signed by the four Allies on 5 June . It included the following: </P> <P> The Governments of the United States of America, the Union of Soviet Socialist Republics, the United Kingdom and the Provisional Government of the French Republic, hereby assume supreme authority with respect to Germany, including all the powers possessed by the German Government, the High Command and any state, municipal, or local government or authority . The assumption, for the purposes stated above, of the said authority and powers does not effect the annexation of Germany . </P> <P> It is disputed whether this assumption of power constituted debellation--the end of a war caused by the complete destruction of a hostile state . </P> <P> Potsdam Agreement signed on 12 August 1945; in connection to this, the Allied leaders planned the new post-war German government, resettled war territory boundaries, de facto annexed a quarter of pre-war Germany situated east of the Oder - Neisse line, mandated and organized the expulsion of the millions of Germans who remained in the annexed territories and elsewhere in the east . They also ordered German demilitarization, denazification, industrial disarmament and settlements of war reparations . </P>

When did the war in europe officially end