What is a risk associated with planning efforts conducted outside of the three event horizons?

Planning efforts that occur outside of the three event horizons can indeed lead to a loss of tracking and visibility. The three event horizons are critical for managing timeframes in planning: the near-term (up to a year), mid-term (one to three years), and far-term (three to five years or more). When planning extends beyond these horizons, it becomes more challenging to track developments or anticipate changes in the operational environment.

This loss of visibility means that planners may not be able to effectively adjust strategies or re-evaluate priorities as new information becomes available or as conditions change. As a result, the overall effectiveness of the planning process can be compromised, leading to inefficiencies and a possible disconnect between plans and actual circumstances on the ground.

The other options, while they may represent challenges in certain contexts, do not directly relate to the specific risk of losing tracking and visibility that is inherent in planning outside of the defined event horizons.