A number of governments around the world may always a coup. Here's a map.
In this map, there is incredible fragility of the Sahel region, a huge strip of land prone to drought that crosses the continent from east to west.
The Sahel includes, of course, Mali. It also includes a large part of the areas where Al-Qaeda in the Islamic Maghreb (AQIM).
In all, 22 of the 30 countries most at risk are in sub-Saharan Africa. This includes the heavily populated Nigeria, where a coup could worsen the already deadly tension between the Christian and Muslim communities in the country. Traditionally, the Nigerian presidency rotates between a Christian and a Muslim, something that could upset this order could ignite a part of the country.