180409-N-RU672-013 NIAMEY, Niger (April 9, 2018) Lt. Col. Charles Lewis, center left, defense attaché at the U.S. embassy in Niamey, alongside representatives from partner nations Chad and Denmark, listens to opening remarks made at the Senior Leadership Seminar for Flintlock 2018 in Niamey, Niger April 9, 2018. Flintlock is an annual, African-led, integrated military and law enforcement exercise that has strengthened key partner nation forces throughout North and West Africa as well as western Special Operations Forces since 2005. (U.S. Navy photo by Mass Communication Specialist 3rd Class Evan Parker/Released)