A member of the Mexican navy slides tiles across a floor chart during an operations brief at Mexican navy Base Chiapas, Mexico, for all members participating in a North American Maritime Security Initiative exercise, Feb. 29, 2020. NAMSI is a tri-national effort by forces of the United States, Canada, and Mexico to improve mutual capacity for operational coordination. U.S. Coast Guard photo by Petty Officer 2nd Class Zackery Snow.