 On the same day, the AMISOM mission was formally defined and approved by the African Union at the 69th meeting of the Peace and Security Council.On January 22, Malawi agreed to send a half-battalion to a battalion (ranging widely anywhere between approximately 400 to 1,200 troops) for a peacekeeping mission to Somalia.On January 23, 2007, Ethiopia began withdrawing from Mogadishu and all other areas in Somalia.