What is the purpose of non-verbal or coded signals in reconnaissance?

• A. They are used to signal to the enemy.
• B. They reveal positions more quickly than voice transmissions.
• C. They should replace all secure communications.
• D. They avoid detection by conveying essential information.

Answer: (D)

Non-verbal or coded signals in reconnaissance focus on keeping information transfer covert while still conveying what’s essential. The main goal is to share critical updates—like status, movements, or target information—without emitting detectable clues that could reveal position or intent to the enemy. Teams rely on pre-arranged signals such as hand signs, coded colors, smoke, or light patterns that are understood only by those in the know, allowing rapid, discreet communication even when radios or spoken words would risk exposure. Because staying hidden is the priority, these methods minimize acoustic, visual, and electronic signatures that could be exploited by an observer. They are best used as an adjunct to secure communications rather than a substitute; secure channels remain important when possible, but non-verbal signals provide a stealth option for conveying essential information without tipping off the enemy.