What is the primary reason to wear gloves at MOPP level 3?

Wearing gloves at MOPP (Mission Oriented Protective Posture) level 3 is primarily done for protection from chemical agents. MOPP level 3 involves the use of protective gear to safeguard personnel against potential chemical, biological, radiological, and nuclear threats. At this level, gloves are an essential part of the ensemble as they provide a barrier between the skin and harmful substances, preventing contamination and exposure. This is crucial in operational environments where there may be risks of contact with toxic materials, ensuring the safety and maintaining the health of the personnel involved.

The other options do not address the primary purpose of gloves in this context. Heat protection is more relevant to environments where temperature regulation is necessary, while boosting morale is an indirect benefit of wearing protective gear, and signaling troop movements pertains to operational tactics rather than protective measures. Thus, the main focus remains on ensuring safety from chemical threats with the gloves worn at MOPP level 3.