Members of the Tunisian navy visit, board, search and seizure team practice securing simulated hostile mariners while participating in Exercise Phoenix Express 2021 aboard the Expeditionary Sea Base USS Hershel “Woody” Williams (ESB 4) in the Mediterranean Sea, May 23, 2021. Exercise Phoenix Express 2021, conducted by U.S. Naval Forces Africa, is an at-sea maritime exercise designed to improve cooperation among participating nations in order to increase maritime safety and security in the Mediterranean.