ATL RC East, derived from the acronym Army Training and Leader Development Role Core East, is a United States Army unit responsible for training and supporting the Afghan National Security Forces in their mission to maintain peace and security. Synonyms for ATL RC East could include "Army Training and Leader Development (ATLD) Core East", "Eastern Role Core (ERC)", or simply "ATL East". Each of these interchangeable terms refers to the same military unit dedicated to facilitating professional training and mentoring for Afghan security personnel. Regardless of the synonym used, the goal remains constant: enhancing the capabilities of Afghan forces and fostering stability in the region.