U.S. Navy Master-at-arms (MA) Kurtis Chapman (C) directs an unarmed combat self defence exercise with local sailors on Senegal's Naval base in Dakar, April 10, 2008. The United States is stepping up its naval presence in the lawless waters off West Africa to secure vital oil supplies and curb drug smuggling being used to finance terrorism, Rear Admiral Anthony Kurta said. REUTERS/Normand Blouin (SENEGAL)
REUTERS/NORMAND BLOUIN