U.S. Marines with 3rd Battalion, 23rd Marine Regiment, 4th Marine Division receive instruction from Marines with the Infanteria de Marinade Colombia (Colombian Marine Corps) on how to properly rappel down a structure during UNITAS LXIV on Base de Entrenamiento de Infanteria de Marina (Colombian Marine Corps training base) Coveñas, Colombia, July 13, 2023. UNITAS, which is taking place in Colombia this year, is the world’s longest-running annual multinational maritime exercise that focuses on enhancing interoperability among multiple nations and joint forces during littoral and amphibious operations in order to build on existing regional partnerships and create new enduring relationships that promote peace, stability, and prosperity in the U.S. Southern Command’s area of responsibility. (U.S. Marine Corps photo by Lance Cpl. Christian Salazar)