What is defined as protection from enemy observation?

The term that refers to protection from enemy observation is "concealment." Concealment involves the use of natural or artificial materials to hide individuals, equipment, or installations from the enemy's line of sight. It is focused specifically on making these items unobservable rather than just providing safety from fire or attacks.

In a military context, effective concealment is vital as it allows forces to remain undetected, facilitating tactical advantages. While camouflage is related and involves visual disguising techniques to blend in with the surroundings, it does not solely encompass the broader concept of being shielded from observation as concealment does. The distinction lies in the intent and method; camouflage is a tactic, while concealment is the state achieved through that tactic.

Hiding typically refers to physically positioning oneself or objects out of sight but may not involve strategic use of the environment or materials for extended protection. Cover, on the other hand, is primarily focused on protection from enemy fire rather than mere observation, providing a physical barrier that can shield against direct threats, such as bullets or shrapnel.