The closing sentence of the prefatory statement of President Donald J. Trump’s National Security Strategy (NSS) — which was unveiled on December 18th, 2017 — makes clear the ultimate goal of the President’s first NSS:

“This National Security Strategy puts America First.”

Put aside for a moment that all national security strategies are a priori formulated with a country’s national security interests as the only determinative factor — it is like a football coach stating that “this game plan is designed to help us win” — and what is the actual concrete strategy that will underpin the Trump administration’s foreign and security policies?

The NSS document is — in general terms — a statement of an administration’s long-term plan to promote, achieve, and serve the national interests, as the current administration perceives them. It is the interpretation of those national interests, and the intended best strategy to achieve them, that differs from administration to administration.