相关规则
Sweden
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Sweden’s IHL Manual (1991) provides: “The parties shall always distinguish between … civilian property and military objectives.” 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 3.2.1.5, p. 41.
The manual considers that the principle of distinction as stated in Article 48 of the 1977 Additional Protocol I is part of customary international law. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 2.2.3, p. 19.
In 2009, in answer to a written question in Parliament regarding the EU and massive ordnance penetrator bombs, Sweden’s Minister for Foreign Affairs stated:
International humanitarian law or the laws of war contain rules that aim to alleviate the effects of war. One of the most important principles is the principle of distinction, which entails the duty to distinguish between military targets and civilians and civil property. 
Sweden, Answer by the Minister for Foreign Affairs to written question 2009/10:114 in Parliament regarding the EU and massive ordnance penetrator bombs, 28 October 2009.
Sweden’s IHL Manual (1991) provides: “Military operations may only be directed towards military objectives.” 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 3.2.1.5, p. 41; see also p. 52.
In 2009, during a debate between party leaders in Parliament, Sweden’s Minister for Education and Research stated:
As has been stated previously, Israel has a responsibility to adhere to the principle of proportionality and distinction when defending itself. …
Israel has the right to self-defence but also an obligation to use methods of proportionality and attack military targets. 
Sweden, Statement by the Minister of Education and Research during a debate between party leaders in Parliament, Parliamentary Protocol 2008/09:56, 14 January 2009, pp. 29–30.
Sweden’s IHL Manual (1991) provides: “Civilian objects and civilian property may not constitute objectives for attack or be subjected to reprisals.” 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 3.2.1.5, p. 53.
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, Sweden stated: “Under the principle of distinction, an attack on a civilian population or civilian property is prohibited.” 
Sweden, Written statement submitted to the ICJ, Nuclear Weapons case, 20 June 1995, p. 3; see also Written statement submitted to the ICJ, Nuclear Weapons (WHO) case, 2 June 1994, p. 3.
In 2009, in a press release entitled “Gunilla Carlsson [statement by the Minister for International Development Cooperation] on humanitarian support to Gaza”, the Ministry for Foreign Affairs of Sweden stated:
Yesterday’s attack on a distinctly marked school run by the UN [Relief and Works] Agency for Palestine Refugees (UNRWA) … is the latest tragic demonstration of the lack of respect for international law shown in this conflict, especially with regard to the protection of the civilian population. … The violence directed at civilians by both sides of the conflict must cease immediately. The principles of international law protecting civilians and humanitarian access to those in need must be respected. 
Sweden, Ministry for Foreign Affairs, “Gunilla Carlsson [statement by the Minister for International Development Cooperation] on humanitarian support to Gaza”, Press Release, 7 January 2009, p. 2.
In 2009, in answer to a written question in Parliament regarding attacks and murders of Afghan women and girls, Sweden’s Minister for Foreign Affairs stated: “Attacks against schools for girls are … a breach of international humanitarian law.” 
Sweden, Answer by the Minister for Foreign Affairs to written question 2008/09:952 in Parliament regarding attacks and murders of Afghan women and girls, 2 June 2009.