Liberian service members practice room clearing and tactical movement techniques aboard the Spanish Civil Guard patrol ship Rio Segura March 8, 2014, in Dakar, Senegal, during exercise Saharan Express 2014. Saharan Express is a counternarcotics and proliferation exercise that is part of Africa Partnership Station West. APS is an international security cooperation initiative facilitated by Commander, U.S. Naval Forces Europe-Africa aimed at strengthening global maritime partnerships through training and collaborative activities in order to improve maritime safety and security in Africa.