ICRC databases on international humanitarian law
Treaties and Documents
1949 Conventions and Additional Protocols, and their Commentaries
Historical Treaties and Documents
The Laws of War on Land. Oxford, 9 September 1880.
Part I : General principles - Art. 5.
Art. 5. Military conventions made between belligerents during the continuance of war, such as armistices and capitulations, must be scrupulously observed and respected.