What principle focuses on the necessity of assigning every objective under one responsible commander for effective operations?

The principle that emphasizes the importance of assigning every objective under one responsible commander for effective operations is known as Unity of Command. This principle is crucial in military operations as it ensures that all forces involved in a mission are coordinated and directed towards the same goals without conflicting orders or divided authority.

Unity of Command facilitates clear communication and streamlined decision-making, allowing for more efficient and effective execution of operations. When all forces understand who is in charge, it reduces ambiguity and enhances coherence in tactical and strategic planning, ultimately leading to better mission outcomes. By maintaining this principle, military organizations can maximize their operational effectiveness and maintain focus on their objectives.

Other concepts such as Doctrine, Economy of Force, and Operational Coordination each address different aspects of military operations but do not specifically underscore the importance of unified command under a single leader for each objective.