Related Rule
Germany
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section C. Attacks against civilian objects in general
Germany’s Military Manual (1992) provides that it is prohibited “to make civilian objects the object of attack”. 
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, § 451.
Germany’s Soldiers’ Manual (2006) states: “Combat operations may only be directed against the armed forces of the enemy and other military objectives, not however against the civilian population or civilian objects.” 
Germany, Druckschrift Einsatz Nr. 03, Humanitäres Völkerrecht in bewaffneten Konflikten – Grundsätze, Erarbeitet nach ZDv 15/2, Humanitäres Völkerrecht in bewaffneten Konflikten – Handbuch, DSK SF009320187, Bundesministerium der Verteidigung, R II 3, August 2006, p. 3.
Germany’s Law Introducing the International Crimes Code (2002) punishes anyone who, in connection with an international or a non-international armed conflict, “directs an attack by military means against civilian objects, so long as these objects are protected as such by international humanitarian law”. 
Germany, Law Introducing the International Crimes Code, 2002, Article 1, § 11(1)(1).