Which principle of war emphasizes the importance of clear direction and simplicity in operations?

The principle of war that emphasizes the importance of clear direction and simplicity in operations is Simplicity. This principle underlines that military plans, orders, and operations should be straightforward and easy to understand for all personnel involved. When operations are simple, they are easier to communicate, execute, and adapt to changing circumstances on the battlefield. Clear direction ensures that everyone understands their roles and tasks, ultimately enhancing coordination and effectiveness.

Simplicity helps to reduce the chances of confusion and errors during operations, making it a crucial element for successful military action. In contrast, concepts like Economy of Force, Maneuver, and Unity of Command focus on different aspects of military strategy, such as resource allocation, the strategic positioning of forces, and coherent leadership, respectively, but they do not prioritize the clarity and simplicity of operations as directly as the principle of Simplicity does.