What is an example of a restrictive air defense measure?

A restrictive air defense measure is designed to limit the circumstances under which weapons may be fired at aerial targets, particularly to reduce the risk of friendly fire or collateral damage.

In this context, "Weapons Tight" signifies that engaging targets is permissible only if they are positively identified as hostile. This policy requires air defense personnel to exercise a high level of caution, ensuring that there is no ambiguity about the target's identity before taking action. It supports a careful approach to air defense by balancing the need to engage threats while protecting friendly forces and avoiding accidental engagements.

The other options represent different levels of engagement rules. For instance, "Weapons Free" allows personnel to engage any targets identified as hostile without further confirmation, while "Weapons Hold" prohibits any engagement unless specifically directed. "Position Area for Air Defense" refers to an operational area for air defense units but does not in itself restrict engagement procedures.