Règle correspondante
Practice Relating to Rule 22. The Principle of Precautions against the Effects of Attacks
Section B. Feasibility of precautions against the effects of attacks
The Military Manual (2005) of the Netherlands states: “Separating the locations of civilian population/objects and military objectives is an obvious step to protect the population, but one that may run into serious difficulties in densely populated areas.” 
Netherlands, Humanitair Oorlogsrecht: Handleiding, Voorschift No. 27-412, Koninklijke Landmacht, Militair Juridische Dienst, 2005, § 0550.
At the CDDH, the Netherlands stated:
The word “feasible” when used in Protocol I, for example in Articles 50 and 51 [now Articles 57 and 58], should in any particular case be interpreted as referring to that which was practicable or practically possible, taking into account all circumstances at the time”. 
Netherlands, Statement at the CDDH, Official Records, Vol. VI, CDDH/SR.42, 27 May 1977, p. 214, § 61.
Upon ratification of the 1977 Additional Protocol I, the Netherlands declared: “The word ‘feasible’ is to be understood as practicable or practically possible taking into account all circumstances ruling at the time, including humanitarian and military considerations.” 
Netherlands, Declarations made upon ratification of the 1977 Additional Protocol I, 26 June 1987, § 2.