Which key should be emphasized to maintain light discipline?

Minimizing bright light usage is essential for maintaining light discipline because it directly reduces the risk of detection by the enemy during nighttime operations. Bright lights can easily illuminate positions, making personnel and equipment visible to adversaries, which could compromise safety and operational effectiveness. By keeping light levels low, troops can remain stealthy and maintain the element of surprise.

In tactical situations, the use of dim or filtered light sources, such as proper night vision devices or red-light flashlights, allows soldiers to navigate and communicate without jeopardizing their concealment. Keeping light to a minimum also helps maintain adapted night vision, which is crucial for situational awareness in low-light conditions.

While other aspects, such as using flashlights, reflective gear, or camp locations, may contribute to overall operational success, minimizing bright light usage is the most critical principle when focusing on light discipline in infantry operations.