Amendments to the United Nations Charter
Because Charter amendments require the consent of all five permanent members of the United Nations Security Council—defined in Article 23 of the Charter as "The Republic of China, France, the Union of Soviet Socialist Republics, the United Kingdom of Great Britain and Northern Ireland, and the United States"—it is impossible for other UN member states to force the permanent five to give up their Security Council 'veto power', by means of a Charter amendment. Many reformers have described this situation as a Catch-22. According to Global Policy Forum, "the P-5 are content with the present arrangements and oppose any changes that might dilute or challenge their power or expand their 'club.' China has already announced it will block permanent membership for Japan, and the United States has suggested that it will only support Council reform that commands an implausibly 'broad consensus'".
2017 United Nations Security Council election
The 2017 United Nations Security Council election was held on 2 June 2017 during the 71st session of the United Nations General Assembly, held at United Nations Headquarters in New York City. In addition to the regular elections for five of the non-permanent seats on the UN Security Council, there was by-election for a sixth seat held by Italy who relinquished its seat at the end of the year as part of a term splitting agreement with the Netherlands. The regular elections are for two-year mandates commencing on 1 January 2018; the by-election is for the remainder of Italy's term.
In accordance with the Security Council's rotation rules, whereby the ten non-permanent UNSC seats rotate among the various regional blocs into which UN member states traditionally divide themselves for voting and representation purposes, the five regularly available seats are allocated as follows:The six elected members began their two-year terms on the 1st of January, 2018 , and will continue to serve on the Security Council until the end of 2019.