Соответствующая норма
Spain
Practice Relating to Rule 21. Target Selection
Spain’s LOAC Manual (1996) states:
When a choice is possible between several military objectives for obtaining a similar military advantage, the objective to be selected shall be that the attack on which may be expected to cause the least danger to civilian lives and to civilian objects. 
Spain, Orientaciones. El Derecho de los Conflictos Armados, Publicación OR7-004, 2 Tomos, aprobado por el Estado Mayor del Ejército, División de Operaciones, 18 March 1996, Vol. I, § 4.4.b; see also §§ 2.3.b.(1), 10.8.e.(2) and 10.8.f.(1).
Spain’s LOAC Manual (2007) states that “when a choice is possible between several military objectives for obtaining a similar military advantage, the objective expected to cause the least danger to civilian lives and civilian objects must be chosen”. 
Spain, Orientaciones. El Derecho de los Conflictos Armados, Tomo 1, Publicación OR7–004, (Edición Segunda), Mando de Adiestramiento y Doctrina, Dirección de Doctrina, Orgánica y Materiales, 2 November 2007, § 4.4.b; see also §§ 2.3.b.(1) and 4.3.
In 2010, in the Couso case, which concerned the killing of a Spanish journalist in Baghdad on 8 April 2003 by troops of the United States of America, the Criminal Chamber of Spain’s Supreme Court referred to norms of IHL relevant to the case under review, including Article 57(3) of the 1977 Additional Protocol I. 
Spain, Supreme Court, Couso case, Judgment, 13 July 2010, Section II(II), Sexto, § 2, p. 15.