"U.N. Mediator for Yemen Conflict Leaving Post" – via NYTimes.com. ↑ "U.N. chief appoints Britain's Martin Griffiths as Yemen envoy". February 16, 2018 – via www.reuters.com. ↑ "Special Announcement: Michael Keating as new Executive Director | European Institute of Peace". www.eip.org. Retrieved 2019-06-13. ↑ "Who is Martin Griffiths, the British mediator bringing formidable experience to Yemen envoy role?".