Assembly/AU/3(XIV) Page 12 to this initiative. Subsequently, the Commissioner for Peace and Security jointly with the Assistant Secretary General of the League of Arab States also proceeded to Doha in January as part of the efforts aimed at launching the negotiations between the Sudanese Parties. As at the time of finalization of this Report, the Mediation was pursuing its consultations with the Parties with a view to preparing the negotiations. On the humanitarian front, efforts continue to be made to address the need of the affected populations. It should also be noted that some IDPs have returned to their places of origin. The security situation in Darfur remains relatively calm. 45. At its 198th meeting held in Addis Ababa on 21 July 2009, the PSC decided to extend, for a further period of 12 months, the mandate of UNAMID, and requested the UN Security Council to do the same. By resolution 1881(2009) dated 30 July 2009, the Security Council also decided to extend the mandate of UNAMID for another period of 12 months. It is worth mentioning that, during the period under review, the UNAMID’s leadership went through wide changes, in particular with the appointment of Mr. Ibrahim Gambari as the new Special Representative. Progress has continued to be made in the deployment of the Mission, with over 77% of the troops and 73% of the police personnel deployed. Unfortunately, shortfalls in key military multipliers and enablers continue to affect negatively the effectiveness of the Force. Finally, the 6th and the 7th Tripartite Coordination Mechanism meetings took place on 12 July and on 16 November 2009, in Khartoum. This Mechanism, involving the Government of Sudan, the AU and the UN, has continued to be instrumental in addressing issues related to the deployment of UNAMID. i) Relations between Chad and the Sudan 46. During the period under review, relations between Chad and the Sudan, tense since the rebel attack in May 2009, improved significantly with the visit of a high-level Sudanese delegation to Chad from 10 to 11 October 2009, led by Ghazi Salahadine, Special Adviser to President Omar El Bashir. The delegation was received in audience by President Idriss Déby Itno. At the end of the visit, the two delegations expressed their satisfaction at the sincerity and understanding that prevailed during their discussions, and committed to take no action that could hamper relations between the two States. 47. As a follow-up to that visit, the Minister of Foreign Affairs of Chad, Moussa Faki, visited Khartoum from 24 to 25 December 2009, where he held talks with the highest authorities of the Sudan including President Omar El Bashir. In addition to reaffirmation of their will to normalize relations, the two countries agreed to work towards developing confidence-building measures; take concrete and reciprocal measures to put an end to the presence of rebellion in the two countries; organise a military and security experts’ meeting to reactivate the military and security Protocol; deploy joint monitoring forces and set up observation posts. The meeting of military experts was held in N’Djamena from 7 to 15 January 2010, culminating in the signing, on 15 January 2010, of an Agreement for normalization of relations between the Sudan and Chad, and of an Additional Protocol on border security. In accordance with the terms of these instruments, the two countries agreed to pursue implementation of the measures aimed at putting an end to the presence of, support to and any action by, the hostile armed groups operating in both countries as well as the measures for securing their common border, and to maintain regular contacts so as to facilitate attainment of their objectives.