What is the definition for the joint brevity term 'leakers'?

• A. An airborne threat that passes through a defensive layer
• B. A leaked piece of information
• C. An interception device
• D. A ground-based beacon

Answer: (A)

Leakers describe an airborne threat that penetrates a defensive layer. In a layered air-defense setup, outer belts are meant to stop or slow threats, and a leaker indicates the enemy aircraft or missile has breached those outer defenses and continues inward. This shorthand helps commanders quickly convey that the threat isn’t contained at the perimeter and requires escalation or different engagement priorities. The other concepts—information leaks, an interception device, or a ground-based beacon—refer to entirely different ideas and don’t capture the idea of a threat successfully penetrating defenses.