Which leadership principle advises officers to be technically and tactically proficient?

The principle that emphasizes the importance of being technically and tactically proficient is fundamental to effective leadership within the Marine Corps. This principle teaches that officers must possess both the knowledge and skills necessary to perform their duties and make informed decisions in challenging situations. Technical proficiency refers to an officer’s understanding of specific tasks, equipment, and procedures, while tactical proficiency involves the ability to employ strategies and maneuvers effectively in various operational contexts.

By being proficient, leaders can earn the respect and trust of their Marines, who look to them for guidance and direction. A leader who demonstrates a high level of competence is better equipped to train their subordinates and provide sound advice. Additionally, this capability ensures that officers are ready to face the dynamic and often stressful situations of military operations, reinforcing the overall effectiveness of their unit.

This principle ultimately helps foster a culture of excellence and preparedness, as officers who prioritize their own development set a standard for their Marines to follow, thereby enhancing the team's overall performance.