The primary way to frame the strategic approach and environment of the new administration as it relates to national security should be through an economic lens. In doing so, one cannot on the one hand understate an atypical governance style, yet on the other ignore the inertia of a large nation and an intertwined global economic system.
Archimedes' Feet
Ethics is not just intellectual in its dimension, but spiritual, and that the spiritual dimension is the foundation, and thus primary dimension where discussion should begin. If ethics, morality, or strategy were a purely intellectual endeavor, then all we would need is an algorithm to do it effectively. But that is not how ethics works.