Kenya

Until recently, experts assumed that al-Shabaab’s recruitment in Kenya was limited to the country’s Somali minority, which numbers roughly a million people. But recent attacks have forced a reassessment; as ex-members testify, now Kenyans are joining up as well.

Nairobi sent troops into Somalia last month ostensibly to root out Islamist militants. But the real reason Kenya went to war has more to do with the restless ambitions of its own military, which is eager to abandon the country's largely peaceful history.

The ongoing famine in Somalia has placed millions of lives at risk. To feed its victims and prepare for what comes next, the United States and its allies must expand food aid and ramp up the pressure on al Shabab.

Kenya was once Africa's poster child for stability and growth. Then, in late 2007, it descended into ethnic violence. The current coalition government has not solved the underlying problems of corruption and inequality, and ethnic resentments are likely to remain until Kenyans elect a clean and inclusive government.