Final answer:
While the question seems to relate to leadership, within the context of scientific disciplines, physics is the field that underpins the principles used to establish environments in various fields like engineering and technology.
Step-by-step explanation:
The command responsible for establishing an environment to allow subordinates to apply specific principles is most closely associated with leadership or management practices rather than a scientific discipline. However, within the context of scientific studies, physics is the field that provides fundamental principles which can have applications across various disciplines, including establishing parameters for environments in engineering and technology. Physics is a cornerstone of many disciplines such as engineering, medicine, and technology, as it provides the laws and principles that dictate how materials behave and interact. For instance, physics principles are applied by engineers to design safe and functional structures, by physicians to understand the mechanics of the human body for treatment, and by computer programmers to create efficient algorithms.