Related Rule
Germany
Practice Relating to Rule 121. Location of Internment and Detention Centres
III. Military Manuals
Germany’s Military Manual (1992) provides: “POW [prisoner of war] camps shall not be situated in danger zones.” 
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 Konflikten – Handbuch, August 1992, § 714.