Obama puts boots on the ground in Africa

Meanwhile, if meddling in Libya wasnt enough..US taxpayers now get to foot the bill for 100 ground troops Obama is sending in to run some warlord's army. Change my ass. Here is more info about the Africa troop deployment. I'm all for saving people from rape and murder and the like..but supporting one guerrilla warlord over another isnt going to accomplish anything. Has it worked in ANY of the 100s of countries we've meddled with thus far?