Related Rule
Netherlands
Practice Relating to Rule 13. Area Bombardment
The Military Manual (1993) of the Netherlands provides that “attacks (by bombardment) which treat as a single military objective a number of clearly separated and distinct military objectives located in a city, village or area containing a concentration of civilians or civilian objects” are an example of indiscriminate attacks and, as such, prohibited. 
Netherlands, Toepassing Humanitair Oorlogsrecht, Voorschift No. 27-412/1, Koninklijke Landmacht, Ministerie van Defensie, 1993, p. V-4.
The Military Manual (2005) of the Netherlands states:
The following attacks are also considered indiscriminate:
- what is known as carpet bombing. In AP I [1977 Additional Protocol I], this is described as attacks (by bombing) which treat as a single military objective a number of clearly separated and distinct military objectives located in a city, town, village or other area containing a similar concentration of civilians or civilian objects. 
Netherlands, Humanitair Oorlogsrecht: Handleiding, Voorschift No. 27-412, Koninklijke Landmacht, Militair Juridische Dienst, 2005, § 0516.