Which term refers to the quantities of supplies needed to carry out a mission?

The term that accurately refers to the quantities of supplies needed to carry out a mission is "Combat Load." This concept encompasses the essential items and quantities that personnel require to effectively engage in combat operations. It includes not only ammunition but also other essential supplies needed for the successful execution of a mission, such as food, water, equipment, and medical supplies. The combat load is meticulously calculated to ensure that personnel can operate efficiently and sustain themselves in the field while maintaining mobility and effectiveness.

In contrast, the other options have distinct meanings. "Operational Load" typically refers to the total amount of cargo or supplies needed for broader operational scenarios, which might not be directly linked to combat operations. "Basic Load" often defines a set quantity of essential supplies that a soldier should carry for a designated period, usually determined by the standard military supply chain. "Prescribed Load" refers to the specific amounts of items or supplies that have been formally assigned or specified for particular roles or tasks, which may not encompass the totality of what’s needed in a combat situation. Understanding the precise definitions of these terms is crucial for operational planning and execution in military contexts.