President Obama sends advisers to Central Africa: 
President Obama
 said Friday that he had ordered the deployment of 100 armed military 
advisers to central Africa to help regional forces combat the Lord’s Resistance Army,
 a notorious renegade group that has terrorized villagers in at least 
four countries with marauding bands that kill, rape, maim and kidnap 
with impunity.
. . . Mr. Obama wrote that he had decided to act because it was “in the 
national security and foreign policy interests of the United States.” He
 also wrote that the deployment was justified by a law passed by 
Congress in May 2010, the Lord’s Resistance Army Disarmament and Northern Uganda Recovery Act,
 which favored “increased, comprehensive U.S. efforts to help mitigate 
and eliminate the threat posed by the LRA to civilians and regional 
stability.”        
Times Topic: Lord's Resistance Army.
Wikipedia: Lord's Resistance Army.
Update: Michael Gerson (ex-Bush speechwriter) supports the action.