Operations Specialist 2nd Class Robert Mertz passes out supplies to a group of students at Seoul American Elementary School on U.S. Army Garrison Yongsan during geometry night, an evening of hands-on math activities for kindergarten to 5th grade students. Mertz volunteered for the marshmallow geometry table while representing the Seoul chapter of Coalition of Sailors Against Destructive Decisions. (U.S. Navy photo by: Mass Communication Specialist 1st Class Travis Simmons/Released)