Apparently, it's the US who will pay:
U.S. Support to Regional Efforts To Counter the Lord's Resistance Army
Fact Sheet
Office of the Spokesperson
Washington, DC

March 23, 2012

The United States’ comprehensive, multi-year strategy seeks to help the Governments of Uganda, CAR, the DRC, and South Sudan as well as the African Union and United Nations to mitigate and end the threat posed to civilians and regional stability by the LRA. The strategy outlines four key objectives for U.S. support: (1) the increased protection of civilians, (2) the apprehension or removal of Joseph Kony and senior LRA commanders from the battlefield, (3) the promotion of defections and support of disarmament, demobilization, and reintegration of remaining LRA fighters, and (4) the provision of continued humanitarian relief to affected communities.
http://www.state.gov/r/pa/prs/ps/2012/03/186732.htm