U.S. Army Maj. Brett Walker, a member of the Massachusetts National Guard, speaks with members of the Nigerian navy about U.S. military public affairs processes during Exercise Obangame Express 2019 in Lagos, Nigeria.

LAGOS, Nigeria (Mar. 20, 2019) U.S. Army Maj. Brett Walker, a member of the Massachusetts National Guard, speaks with members of the Nigerian navy about U.S. military public affairs processes during Exercise Obangame Express 2019 in Lagos, Nigeria, March 20, 2019. Obangame Express, sponsored by U.S. Africa Command, is designed to improve regional cooperation, maritime domain awareness, information-sharing practices, and tactical interdiction expertise to enhance the collective capabilities of Gulf of Guinea and West African nations to counter sea-based illicit activity. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jonathan Nelson) File# 190320-N-WO404-184