An article 'The Charcoal Connection: US security assistance and Kenyan Counterterrorism' on War on the Rocks blogsite (WOTR), which rightly asks whether Kenya is really fighting:
In 2012, the Kenyan army succeeding in driving the Shabaab from the Somali port of Kismayo, the group’s major southern redoubt. The army turned the port over to the Ras Kamboni force, a local militia. That same year, a UN resolution banned the export of Somali charcoal in an effort to undercut the Shabaab’s finances. Ignoring the resolution, the Kenyan army and its allied Somali militia has allowed the trade to continue. Members of the army, the Ras Kamboni force, and Kenyan politicians have reportedly benefited from this illicit commerce—as has the Shabaab, which has continued to control and reap considerable profits from the charcoal networks.
There is nothing like simplicity!

Link:http://warontherocks.com/2013/09/the...nterterrorism/