Which element is not part of an echelon sustainment train?

Which element is not part of an echelon sustainment train?

• A. Medical
• B. Maintenance
• C. Supply
• D. Transportation

Answer: (C)

The key idea is what functions are kept at the echelon level to sustain operations directly at that level. An echelon sustainment train typically includes medical support for casualty care and evacuation, maintenance to keep weapons and vehicles ready, and transportation to move personnel and materiel where needed. Supply, while essential, is a broader provisioning function that feeds the system but is not part of the echelon sustainment train itself; it’s handled through the larger logistics network and higher or adjacent echelons. So the element that is not part of the echelon sustainment train is the provisioning function—supply.

The key idea is what functions are kept at the echelon level to sustain operations directly at that level. An echelon sustainment train typically includes medical support for casualty care and evacuation, maintenance to keep weapons and vehicles ready, and transportation to move personnel and materiel where needed. Supply, while essential, is a broader provisioning function that feeds the system but is not part of the echelon sustainment train itself; it’s handled through the larger logistics network and higher or adjacent echelons. So the element that is not part of the echelon sustainment train is the provisioning function—supply.