The African Union Mission in Somalia (AMISOM) was a regional peacekeeping mission operated by the African Union with the approval of the United Nations Security Council. It was mandated to support transitional governmental structures, implement a national security plan, train the Somali security forces, and to assist in creating a secure environment for the delivery of humanitarian aid. As part of its duties, AMISOM supported the Federal Government of Somalia's forces in their battle against Al-Shabaab militants.