Which term describes a defensive asset that provides early warning, protection from observation and direct fires, and can operate independently from the main body?

Which term describes a defensive asset that provides early warning, protection from observation and direct fires, and can operate independently from the main body?

• A. Cover
• B. Screen
• C. Observation Post
• D. Phase Line

Answer: (A)

The concept being tested is screening—the forward force that protects the main body by providing early warning and by blocking or delaying enemy observation and direct fires. A screen is designed to move and operate ahead of or separately from the main force, giving the defenders time to react and keeping the enemy from gaining surprise on the main body. This forward, alerting role is what sets screening apart from simple protection by terrain (cover), fixed observation duties (an observation post), or a coordinate boundary (phase line). Cover shields defenders from enemy fire but isn’t primarily about observing and reporting or moving independently to warn the main body. An observation post focuses on sighting and reporting without the same screening responsibility, and a phase line is a planning/coordination tool rather than an asset that provides early warning or defense.

The concept being tested is screening—the forward force that protects the main body by providing early warning and by blocking or delaying enemy observation and direct fires. A screen is designed to move and operate ahead of or separately from the main force, giving the defenders time to react and keeping the enemy from gaining surprise on the main body. This forward, alerting role is what sets screening apart from simple protection by terrain (cover), fixed observation duties (an observation post), or a coordinate boundary (phase line). Cover shields defenders from enemy fire but isn’t primarily about observing and reporting or moving independently to warn the main body. An observation post focuses on sighting and reporting without the same screening responsibility, and a phase line is a planning/coordination tool rather than an asset that provides early warning or defense.