The document provides an overview of the Joint Training System (JTS) used by the US military to ensure readiness through effective joint training. The JTS is a 4-phased approach that includes defining requirements, planning training, executing training, and assessing performance. Key aspects of the JTS include the Universal Joint Task List (UJTL) that identifies over 1300 joint tasks, the DOTMLPF framework for addressing gaps and solutions, and the Chairman's guidance in Joint Publication 3500.03E that outlines the JTS process and its role in the National Exercise Program.