What is a grouping of combat and expeditionary combat support (ECS) unit type codes (UTC) with supplies necessary for sustaining forces called?

The term that refers to a grouping of combat and expeditionary combat support (ECS) unit type codes (UTC) along with the supplies necessary for sustaining forces is known as force presentation. This concept is critical in logistics planning as it ensures that the right resources are organized and made available in a way that meets the operational needs of the forces being deployed.

Force presentation involves the strategic arrangement of units and supplies to effectively respond to mission requirements, particularly during deployments or in support of operations. It ensures that the appropriate combat and support capabilities are readily accessible, maximizing efficiency in logistics and support activities.

The other concepts, while related to military logistics, do not specifically encompass the definition of grouping UTCs and supplies. Combat readiness refers to the overall preparedness of forces to engage in operations, mission assignment relates to the specific tasks allocated to units, and operational capacity typically addresses the ability of forces to execute assigned missions. Each of these elements plays a role in military logistics but does not define the specific grouping structure mentioned in the question.