Who is responsible for developing the concept of sustainment?

The correct choice highlights the collaboration between the Brigade Security Protection Officer (SPO) and the Brigade S4 (supply officer) in developing the concept of sustainment. This partnership is essential because sustainment involves planning, implementing, and managing logistics and support activities needed to maintain operations.

The Brigade SPO possesses expertise in security operations while the Brigade S4 provides critical logistics knowledge. Their combined effort ensures that all aspects of sustainment, such as supply chains, maintenance, and operational readiness, are effectively integrated into the overall operational plan. This collaborative approach allows for more comprehensive planning and resource allocation, ultimately supporting mission success.

The other options represent individuals or groups that, while important in their own capacities, do not focus on the direct collaboration required to develop sustainment concepts. The Division Commander and G4 staff may oversee the broader logistical strategy but typically do not get involved in the specific development of sustainment concepts at the brigade level. The Logistics Readiness Center has operational roles but may not be involved in the conceptual development directly. Lastly, the Battalion Commander and First Sergeant have critical leadership functions but focus more on immediate unit readiness and management, rather than the strategic planning of sustainment at the brigade level.