Règle correspondante
Practice Relating to Rule 51. Public and Private Property in Occupied Territory
Section B. Immovable public property in occupied territory
Germany’s Military Manual (1992) provides: “Immovable government property may only be requisitioned but not confiscated … The title to this property shall not pass to the occupying state. Upon termination of the war, the items and real estate seized shall be restored.” 
Germany, Humanitarian Law in Armed Conflicts – Manual, DSK VV207320067, edited by The Federal Ministry of Defence of the Federal Republic of Germany, VR II 3, August 1992, English translation of ZDv 15/2, Humanitäres Völkerrecht in bewaffneten KonfliktenHandbuch, August 1992, § 557.