9. 联索支助办的任务由安全理事会第 1863(2009)号决议确立。安理会最近一次在 2018 年 7 月 30 日第 2431(2018)号决议中核准将任务期限延长至 2019 年 5 月31 日。安理会在上述决议中除其他外，请秘书长继续向联合国索马里援助团(联索援助团)、非索特派团和 70 名非索特派团文职人员提供一揽子后勤支助，并在为索马里国民军提供这类支持的相同基础上，为与非索特派团联合开展行动的10 900 名正式属于国家安全架构的索马里安全部队官兵提供一揽子后勤支助。安理会还在同一决议中强调指出需要反应迅速和有效的外勤支助，在这方面欢迎联索支助办与非索特派团合作，努力采取措施加强资源和财务管理的问责制和效率，以便更好地按照非索特派团的优先事项和活动提供后勤支援(安全理事会第2431(2018)号决议，第 45 和 46 段)。
9. The mandate of UNSOS was established by the Security Council in its resolution 1863 (2009). The most recent extension of the mandate until 31 May 2019 was approved by the Security Council in its resolution 2431 (2018) dated 30 July 2018. In that resolution, the Council, inter alia, requested the Secretary-General to continue to provide a logistical support package for the United Nations Assistance Mission in Somalia (UNSOM), AMISOM and 70 AMISOM civilians, and for 10,900 Somali security forces, who are formally part of the national security architecture, on joint operations with AMISOM, on the same basis as such support was provided to the Somali National Army. In the same resolution, the Council further stressed the need for responsive and effective field support and in this regard welcomed UNSOS efforts, in collaboration with AMISOM, to implement measures aimed at strengthening accountability and efficiency in the management of resources and finances in order to better align the delivery of logistical supportto AMISOM priorities and activities (Security Council resolution 2431 (2018), paras. 45 and 46).