Norma relacionada
Practice Relating to Rule 33. Personnel and Objects Involved in a Peacekeeping Mission
On 16 May 1967, the General Commander of the Egyptian armed forces sent a message to the Commander of UNEF stating: “Our forces have massed in Sinai on our eastern borders, and to safeguard the safety of the UNEF troops stationed in the observation posts on our borders, I request that you order the immediate withdrawal of these troops.” 
Egypt, Message from the Minister of Foreign Affairs of the United Arab Republic to the UN Secretary-General, 18 May 1967, Report on the Practice of Egypt, 1997, Chapter 1.1; see also UN Secretary-General, Special Report on UNEF, UN Doc. A/6669, 18 May 1967, § 2.