U.S. Navy Chief Petty Officer Charles H. Johnson, center, a maritime interdiction operations expert, demonstrates to boarding team members from east African nations how to evaluate an injury during a first-aid refresher course as part of Cutlass Express 2013 in Victoria, Seychelles, Nov. 12, 2013. Cutlass Express is a U.S. Africa Command-sponsored, Navy-led exercise designed to improve cooperation among participating nations in order to increase maritime safety and security off East Africa.