Corporal Chelsie Antoniou and PFC Juan Enriquez, dental technicians, prepare the dental instruments during the four-day joint medical readiness training exercise in Chiquimula, Guatemala Dec. 11. MEDRETEs give the U.S. an opportunity to support the efforts of other governments in the region to provide medical and dental assistance to the host nation citizens. (U.S. Air Force photo/Staff Sgt. Eric Donner)