To Ensure the Implementation of Security Council Resolutions 2014 (2011) and 2051 (2012), Together with the Political Transition Agreed in November 2011 Under the Initiative of the Gulf Cooperation Council and Its Implementation Mechanism for the Political Transition Process in Yemen, the Secretary-General Established the Office of the Special Adviser to the Secretary-General on Yemen, in Accordance with an Exchange of Letters with the President of the Security Council in June 2012, Which Was Then Subsumed Into the Office of the Special Envoy (S/2012/469 and S/2012/470).