150425-N-TC720-006 ATLANTIC OCEAN The Senegalese navy offshore patrol vessel Kedougou lowers a rigid hull inflatable boat in preparation for a visit, board, search and seizure drill with the Portugese navy during Exercise Saharan Express 2015, April 25. Saharan Express is a U.S. Africa Command-sponsored multinational maritime exercise designed to increase maritime safety and security in the waters of West Africa.