Based on their commanders' assessments, units would move to the ready force pool, from which they could deploy should they be needed, and in which the unit training focus would be at the higher collective levels. Units would enter the available force pool when there is approximately one year left in the cycle, after validating their collective mission-essential task list proficiency (either core or theater-specific tasks) via battle-staff and dirt-mission rehearsal exercises. The available phase would be the only phase with a specified time limit: one year. Not unlike the division-ready brigades of past decades, these formations would deploy to fulfill specific requirements or stand ready to fulfill short-notice deployments within 30 days.