High command and Nerve center

High command noun - The highest leaders in an organization (e.g. the commander-in-chief and senior officers of the military).

Nerve center and high command are semantically related. in center of operations topic. In some cases you can use "Nerve center" instead a noun phrase "High command".

Nerve center noun - A thing or place that is of greatest importance to an activity or interest.

High command and nerve center are semantically related. You can use "High command" instead a noun phrase "Nerve center".