This bill mandates that all Department of Defense military personnel actions, including accessions, promotions, assignments, and schooling selections , must be based exclusively on individual merit, fitness, capability, and performance. It strictly prohibits the consideration of an individual's race, ethnicity, or national origin in any military personnel decision, ensuring a racially neutral approach across the armed forces. A limited exception permits considering demographic factors for specific, unconventional missions in foreign countries to optimize mission success, provided it receives combatant commander approval and is subsequently reported to Congress with details on the mission, staffing, and demographic rationale.