Related Rule
Denmark
Practice Relating to Rule 70. Weapons of a Nature to Cause Superfluous Injury or Unnecessary Suffering
Denmark’s Military Criminal Code (1973), as amended in 1978, provides:
Any person who uses war instruments or procedures the application of which violates an international agreement entered into by Denmark or the general rules of international law, shall be liable to the same penalty [i.e. a fine, lenient imprisonment or up to 12 years’ imprisonment]. 
Denmark, Military Criminal Code, 1973, as amended in 1978, § 25(1).
Denmark’s Military Criminal Code (2005) provides:
Any person who deliberately uses war means [“krigsmiddel”] or procedures the application of which violates an international agreement entered into by Denmark or international customary law, shall be liable to the same penalty [i.e. imprisonment up to life imprisonment]. 
Denmark, Military Criminal Code, 2005, § 36(2).
In 2008, in a joint cost benefit analysis of a possible introduction of a national moratorium on all cluster munitions, Denmark’s Ministry of Defence and Ministry of Foreign Affairs stated:
[T]he only legitimate goal that States may hold during a war, should be to weaken the enemy. To achieve this goal, it is sufficient to render the maximum number of men incapacitated and thereby unable to fight. The goal is exceeded by using weapons that unnecessarily amplify the suffering of men who were made unable to fight, or by making death unavoidable. These principles have the status of customary law. 
Denmark, Ministry of Defence and Ministry of Foreign Affairs, A Cost Benefit Analysis of a Possible Introduction of a National Danish Moratorium on All Cluster Munitions, 1 April 2008, p. 14.