such as the Soldier Integrated Protective Ensemble technology demonstration program, Land Warrior, and Transformation of the United States Army.

Situational awareness including the Rifleman Radio on every soldier, helmet-mounted display (similar to a HUD), location and Physiological Status Monitoring were the basic building blocks being implemented in increment 1.

"[9] WPSM was intended to be an on-board physiological and medical sensor suite that would collect and monitor information regarding vital signs such as body temperature, heart rate, blood pressure, hydration and stress levels, sleep status, body positioning and workload capacity of the warrior.

The system consists of components integrated to maximize safe aircraft operation and sustain aircrews throughout the flight environment.

The ongoing Block 2 technology insertion program provided an Electronic Data Manager and an Aircrew Wireless Intercom System.

The Block 3 system was focused on increasing force effectiveness by improving situational awareness and survivability with features similar to those of the Headgear Subsystem.