Which principle helps in understanding the objectives and enhances the effectiveness of operations under a single commander?

Unity of Command is a fundamental principle that reinforces the effectiveness and coherence of military operations under a single commander. This principle establishes that there should be one responsible commander for each operation, ensuring all forces are working towards the same objectives without confusion or conflicting directives.

When a single commander has authority over all resources and troops involved in an operation, it streamlines communication, fosters clear decision-making, and enhances coordination among units. This singular leadership structure is crucial for maintaining operational focus and efficiency. Furthermore, it helps to mitigate the risks associated with misunderstandings and fragmentation of command that can occur in multi-unit or multinational operations.

The other principles such as Joint Command, Operational Coordination, and Joint Efforts, while important, do not emphasize the single authority aspect as directly as Unity of Command does. Instead, they address aspects like collaboration across services or operational integration, which are indeed vital for comprehensive military strategy but do not inherently provide the clarity of command structure that is essential for mission success.