Yemen 's situation is far from predictable after Obama 's departure , an analyst says . But ultimately , as one U.S. diplomatic cable sent from Sanaa in 2005 put it , `` True power still derives from the military and the tribes . '' Armed forces from the Saleh family and the al - Ahmar family are at odds . The tens of thousands of anti - Saleh protesters are likely to play a role . A combination of factors probably led Saleh to finally step down .
Yemen 's situation is far from predictable after Obama 's departure , an analyst says . Armed forces from the Saleh family and the al - Ahmar family are at odds . The tens of thousands of anti - Saleh protesters are likely to play a role . A combination of factors probably led Saleh to finally step down .