Соответствующая норма
Spain
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section B. Attacks against military objectives
Spain’s LOAC Manual (1996) provides: “Military operations shall be directed only against military objectives.” 
Spain, Orientaciones. El Derecho de los Conflictos Armados, Publicación OR7-004, 2 Tomos, aprobado por el Estado Mayor del Ejército, Division de Operaciones, 18 March 1996, Vol. I, § 2.3.(b).1; see also §§ 4.1 and 4.5.(b)2.
Spain’s LOAC Manual (2007) states: “Military operations may only be directed against military objectives.” 
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, § 2.3.b.(1); see also §§ 3.1.d.(2); 4.1, 4.5.b.(2).(a) and 10.3.e.(1).
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 52(2) of the 1977 Additional Protocol I. 
Spain, Supreme Court, Couso case, Judgment, 13 July 2010, Section II(II), Sexto, § 2, p. 15.
In 1993 and 1995, the Government of Spain made specific statements in connection with the armed conflicts in the Gulf and Bosnia and Herzegovina, endorsing the principle that attacks must be directed only against military objectives. 
Spain, Report by the Minister of Foreign Affairs and Minister of Defence to the Congress Commission on Foreign Affairs on Action by the International Community in Iraq and Developments in Bosnia and Herzegovina, 18 January 1993, Actividades, Textos y Documentos de la Política Exterior Española, Madrid, 1993, p. 240; Press Conference by the Minister of Foreign Affairs and Minister of Defence, 31 August 1995, Actividades, Textos y Documentos de la Política Exterior Española, Madrid, 1995, p. 248.