In the United States, strategic debates often begin with foreign threats: China, Russia, Iran, alliances, and great-power rivalry. These are significant questions, but they’re not the first question.

The first question is one of constitution.

Before policymakers decide what America should do abroad, they must first decide what they owe the constitutional republic and the population from whose political authority it is drawn. Any long-range American policy must start with the American citizen.

America is at a strategic inflection moment, as was the generation that prevailed in 1945. They didn’t preserve the old order. They erected another one. We, today’s generation, have the same obligation.

Harry S. Truman, George C. Marshall, Dean Acheson, and his peers knew that victory meant developing a new strategic architecture. During the Cold War, the security of the American constitutional republic was reinforced by the Marshall Plan, NATO and the postwar order.

But there is one key difference!

Today’s strategists face a different reality. The days of America’s unchallenged hegemony are ending. Today, the United States confronts renewed great-power competition, escalating fiscal strains, contested technical leadership, and increasingly capable competitors. With limited resources and escalating opportunity costs, strategy must begin where the Constitution begins—with the American person.

Our task is to identify those institutions that still serve the constitutional republic; those that need to be adapted; and those that belong to a previous strategic age. Today’s leaders must create the next strategic framework, not preserve the old one. The American people’s confidence, permission and sustained support are America’s greatest strategic advantage, not its military or economics.

Carl von Clausewitz understood war to be for political cause. That mission in a constitutional republic starts with the people. National strategy, therefore, is built on the confidence of the public who approve and sustain national defense.

The post-Cold War period showed that power alone cannot sustain American leadership. For strategic success, you need constitutional legitimacy, clear objectives, and devoted commitment to the American people.

All foreign commitments cost. All deployments cost resources. Every military action costs something of an American family. Every commitment must be explicable in terms of how it enhances the security, prosperity, liberty, and constitutional interests of the Republic.

This is not an argument for isolationism. The United States is still an Atlantic and Pacific power, and international engagement remains vital. But interaction is a means to a purpose, not an end in itself. Foreign policy is to serve the constitutional republic, not vice versa.

Every alliance, treaty, deployment and overseas commitment should be able to answer one question: Is it in the long-term interest of the American constitutional republic?

If the answer is yes, then it deserves continuous support.

If the answer is no, it deserves a revisit.

Before politicians undertake any major strategic commitment, they must address four questions:

1. Does it support the constitutional republic?
2. Does it advance the long-term security and prosperity of the American people?
3. Is it realistically capable of meeting its declared political goals?
4. Can it maintain the informed consent of the American people throughout time?

These questions are not barriers to strategy.

These are its constitutional roots.

A republic rarely fails for want of military strength. More often, they fail because political leaders lose the confidence of the public on whom national authority must ultimately rely. Military strength is a deterrent. Economic power = opportunity. Diplomacy forges partnerships. Technology enhances ability. Nothing is forever when it comes to democratic legitimacy.

Democratic legitimacy originates from only one source:

The American.

The American citizen is not just another stakeholder in national security. The citizen is the constitutional basis of the Republic and the persistent center of gravity of American policy.

All enduring American policy originates there.

All effective American strategies must finish there.