Member states of the United Nations the membership of the USSR in the Security Council and all other UN organs was being continued by the Russian Federation with the support of the 11 member countries of the Commonwealth of Independent States. The other fourteen independent states established from the former Soviet Republics were all admitted to the UN: Both Egypt and Syria joined the UN as original members on 24 October 1945. Following a plebiscite on 21 February 1958, the United Arab Republic was established by a union of Egypt and Syria and continued as a single member. On 13 October 1961, Syria, having resumed its
United Nations Mission to Investigate Alleged Uses of Chemical Weapons in the Syrian Arab Republic United Nations Mission to Investigate Alleged Uses of Chemical Weapons in the Syrian Arab Republic The United Nations Mission to Investigate Allegations of the Use of Chemical Weapons in the Syrian Arab Republic was a fact-finding mission to investigate possible use of chemical weapons in Syria. The mission was established by the U.N. Secretary-general Ban Ki-moon on 21 March 2013 to investigate the 19 March 2013 Khan al-Assal chemical attack that was brought to the Secretary-general's attention by the Syrian Government. On 27 March 2013, the secretary-general appointed Åke Sellström to head the mission. The mission had an OPCW component