In which aircraft sensor posture does the lead aircraft monitor the friendly force while the wing aircraft sanitizes the route?

In the context of aircraft operations within a military environment, the correct answer is associated with the defensive posture. In this scenario, the lead aircraft plays a critical role by monitoring the friendly forces, ensuring they are safe and that any potential threats are identified and addressed. Meanwhile, the wing aircraft is actively working to sanitize the route, which involves identifying and neutralizing any threats that may be present in the area to maintain the safety of the ground troops and the aircraft itself.

This defensive approach serves to protect friendly forces while simultaneously allowing for the flexibility and safety required to conduct operations effectively. The emphasis is on maintaining situational awareness and ensuring that any threats to the friendly forces are mitigated, which is a hallmark of defensive tactics in air support operations.

In contrast, an offensive posture would focus on aggressive actions against adversaries, while a neutral posture implies no direct action regarding threats, thus not aligning with the actions described in the question.