When raising both arms laterally until horizontal with palms down, what signal is being given?

Raising both arms laterally until they are horizontal with palms down is a clear signal for a tactical maneuver known as "Skirmish left or right." This gesture is commonly used in military operations to indicate that personnel should spread out to engage the enemy while maintaining formation. The lateral movement helps to provide better coverage and utilize available terrain.

In a skirmish line, this positioning allows units to effectively respond to threats and provides flexibility in maneuvering. It emphasizes the need for coordination among troops, ensuring that each unit understands the intent to shift positions laterally rather than advancing forward or stopping entirely.

Understanding signals used in military communication is crucial for effective operations, as non-verbal commands help maintain stealth and cohesion among units, especially in combat situations.