What should be marked in red according to the obstacle dealing procedures?

In obstacle dealing procedures, marking the obstacle itself in red is crucial for ensuring safety and effective communication within a military operation. Red is universally recognized as a color indicating danger, which helps to alert personnel to the presence of the obstacle and signals that caution must be exercised when navigating the area. This visual cue is essential for maintaining situational awareness, preventing accidents, and allowing forces to understand where to avoid or take necessary precautions around those hazards.

Marking the actual obstacle differentiates it from the approach path, associated hazards, and evacuation routes, which may require different types of markings or indicators. By clearly marking the obstacle itself in red, personnel can quickly identify where the potential dangers lie and properly plan their movements to mitigate risks. This helps to enhance the overall operational effectiveness and ensures that all members of the unit are aware of the threat posed by the obstacle in question.