What is sustainment drawdown risk in planning?

• A. The weather delaying transportation.
• B. The risk of information systems failing during command and control.
• C. The risk of enemy forces overwhelming logistics in the rear.
• D. The risk of running out of critical supplies during operations due to miscalculation or disruption.

Answer: (D)

Sustainment drawdown risk in planning is about how reducing or drawing down sustainment stocks during operations can lead to shortages if consumption outpaces replenishment or if the supply chain is disrupted. In planning, you balance staying mobile and agile with keeping enough critical items on hand. If you push stock reductions too aggressively or fail to account for higher-than-expected usage, longer-than-expected resupply times, or unexpected interruptions, you end up with stockouts that threaten the mission.

That emphasis is what makes the best answer: it directly describes the danger of running out of critical supplies during operations due to miscalculation or disruption. The other scenarios describe different risks—weather delaying movement, information systems failing in command and control, or an adversary overwhelming logistics in the rear—but they aren’t about the core issue of drawing down sustainment stocks and hitting shortages.