What is another word for high command?
Pronunciation: [hˈa͡ɪ kəmˈand] (IPA) 
High command is the term typically used to refer to the highest-ranking authorities within a military or political organization. However, there are several synonyms that can also be used to describe these individuals. Some of the most common alternatives for high command include upper echelons, top brass, senior leadership, high-ranking officials, high-level management, top executives, and top-level administrators. These terms all serve to describe the same group of powerful decision-makers who have the responsibility of making critical choices that impact the rest of the organization. Regardless of the specific term used, it is clear that the high command occupies a crucial role in any organization.
