Lt. Gen. Charles D. Luckey, the chief of the U.S. Army Reserve and the commanding general of the U.S. Army Reserve Command, meets with Luis E. Arreaga, United States ambassador, in Guatemala City, Guatemala, Jun. 4, 2019. Beyond the Horizon is an annual exercise that combines medical, dental, veterinary and engineering missions to improve the operational readiness of U.S. Forces, reinforce region stability and interoperability with ally forces, and help increase access to medical support and education to the people living in the underdeveloped communities of Huehuetenango. (U.S. Army Reserve photo by Sgt. Stephanie Ramirez)