The United States possesses the world’s strongest military, most innovative economy, and deepest capital markets. The question is whether we can bring those strengths together quickly enough to meet the challenges of the twenty-first century.

A year ago, I argued that the Army faced not a crisis of valor, but a crisis of velocity. Modern warfare moves at the speed of technology, capital, and industrial capacity, while many institutions still operate at the speed of bureaucracy.

That lesson has since sharpened: America’s competitive advantage lies not merely in government spending or military strength, but in our ability to align private capital, innovation, and national purpose.

When that alignment exists, extraordinary things happen. Over the past year, the Army has engaged investors, infrastructure funds, energy developers, manufacturers, technology firms, and financial institutions representing hundreds of billions of dollars in investment capacity. The response has exceeded expectations.

More importantly, we have moved beyond theory.

This year, the Army announced two landmark agreements to develop hyperscale data centers on military installations. Together, these projects represent billions of dollars in privately financed investment without requiring taxpayer-funded construction.

While the economic impact is significant, the strategic implications are even greater. These projects will provide the computing infrastructure, power generation, and digital capacity needed to support growing artificial intelligence and modernization requirements. They also demonstrate that military installations can serve as platforms for the infrastructure that will define economic and military competitiveness for decades to come.

Every dollar of private investment directed toward national-security objectives is a dollar that can be used more effectively elsewhere on behalf of the American taxpayer.

We are seeing similar momentum in other critical sectors.

The Army recently launched initiatives focused on rare earth elements, critical minerals processing, and advanced manufacturing. These efforts are designed to reduce America’s dependence on foreign supply chains for materials essential to modern weapons systems while strengthening domestic industrial capacity.

At the same time, we are pursuing opportunities to modernize the Army’s industrial base through automation, robotics, digital engineering, and next-generation manufacturing technologies. The objective is straightforward: a more resilient and responsive industrial base capable of supporting both peacetime readiness and wartime surge requirements.

Taken together, these efforts point to a larger truth.

National security and economic security are no longer separate conversations.

The same supply chains, energy systems, and industrial capacity that drive economic growth also underpin military power. The battlefield now begins long before the first shot is fired. It begins in mines, factories, power plants, laboratories, data centers, and logistics networks.

This reality is reshaping how we think about America’s strategic assets. For decades, military installations were viewed primarily through the lens of readiness and force projection. Those missions remain paramount. But these installations are also economic assets located near transportation networks, energy corridors, industrial infrastructure, research institutions, and skilled labor pools.

What was once viewed primarily as infrastructure is increasingly becoming a platform for industrial revitalization, energy resilience, and economic growth.

This is where America holds a decisive advantage over its competitors.

China’s model relies on state direction. America’s advantage comes from the voluntary alignment of government, private enterprise, investors, innovators, workers, and communities pursuing a common purpose.

China may direct capital. America can attract it. China may subsidize industries. America can out-innovate them. China may leverage state control. America can unleash the creativity, ingenuity, and determination of free people.

That has always been our advantage. It built the Arsenal of Democracy during World War II. It put Americans on the Moon. It won the Cold War. And it will determine who prevails in the competitions that define this century.

But our greatest advantage has never been resources alone — it is our people.

To be an American is to understand the unique role our nation plays in the world. For generations, America has served as a source of hope and opportunity, demonstrating what is possible when free people unite around a common purpose.

That spirit remains our greatest strategic asset.

The progress we are seeing today demonstrates what is possible when public purpose and private capital align — and that economic strength and national security are not competing priorities, but mutually reinforcing ones.

The question is no longer whether private capital can play a meaningful role in strengthening national security. It can. The question now is scale.

Because in the twenty-first century, strategic advantage will belong not only to the nation with the strongest military, but to the nation that can mobilize its economic strength, industrial capacity, and innovative spirit the fastest. American history gives us every reason to be confident our people will meet that challenge.

What unites us as Americans is far greater than what divides us. When we combine the strength of our military, the power of our economy, and the ingenuity of our people, there is no challenge beyond our capacity to solve.

The Arsenal of Democracy was not built by government alone. It was built by Americans united around a common purpose — and it will be built again the same way.

From the Founding Fathers to Roosevelt’s Arsenal of Democracy to the present, America has always met the moment. I’m betting on America to do it again for the next 250 years.

The opinions expressed in Fortune.com commentary pieces are solely the views of their authors and do not necessarily reflect the opinions and beliefs of Fortune.