Somalia's security has been underwritten by foreign resources since Ethiopia invaded in 2006, toppling an Islamist-led administration but galvanising an insurgency that has since killed tens of thousands of people.

The European Union and United States, the top funders of AU forces in Somalia, wanted to reduce the number of AU peacekeepers due to concerns about long-term financing and sustainability, sources told Reuters in June. Negotiations about the new force had proven complicated, they said.

The United States abstained from the UN Security Council vote on Friday over its funding concerns. The remaining 14 council members voted for the resolution.

--Reuters--