What hand and arm signal is executed by extending both arms downward and to the side at an angle of 45 degrees below the horizontal?

The correct hand and arm signal corresponding to extending both arms downward and to the side at an angle of 45 degrees below the horizontal is referred to as the wedge formation. This signal indicates to the unit that they should form a wedge shape, which is effective for maintaining a spread formation, thus enhancing visibility and coordination during movement or engagement in operations.

The wedge formation is advantageous because it provides a strong tactical position, allowing for coverage from multiple angles and reducing vulnerabilities. The signal's specific arm positioning illustrates the idea of spreading out while still maintaining the ability to support one another in a compact formation.

Understanding the proper use of hand and arm signals is essential for effective communication in military operations, where verbal communication may not always be feasible. Each signal corresponds to a specific tactical maneuver that helps to ensure clarity and coordination among troops.