Related Rule
United States of America
Practice Relating to Rule 33. Personnel and Objects Involved in a Peacekeeping Mission
In 1992, in a report submitted pursuant to paragraph 5 of UN Security Council Resolution 771 (1992) on grave breaches of the 1949 Geneva Convention IV committed in the former Yugoslavia, the United States noted that “five members of the United Nations Protection Force (UNPROFOR) contingent in Sarajevo had been killed by combatants”. 
United States, Former Yugoslavia: Grave Breaches of the Fourth Geneva Convention (Third Submission), annexed to Letter dated 5 November 1992 to the UN Secretary-General, UN Doc. S/24791, 10 November 1992, p. 19.
In 1995, during a debate in the UN Security Council, the United States condemned attacks against UNPROFOR. 
United States, Statement before the UN Security Council, UN Doc. S/PV.3553, 12 July 1995, p. 11.