The 60/40 Portfolio Was Built for a World That No Longer Exists

For the past 80 years, America has run the global economy behind a carefully constructed illusion.

After World War II, the United States built a system: the dollar as the world’s reserve currency, the Navy securing global trade routes, and American institutions setting the rules of commerce.

It was influence without occupation. Control without colonies. Power expressed through systems rather than force.

In other words, America ran the world while pretending it didn’t.

That era is ending.

Over the past several months – war with Iran, pressure on Venezuela, the Greenland gambit, tariffs, and aggressive economic nationalism – the United States has stopped pretending.

What looks like a series of disconnected events is something much bigger: a shift toward resource sovereignty – a world where nations prioritize control of energy, materials, and supply chains over maintaining a shared global system.

The mask of Pax Americana hasn’t just slipped. It’s been removed.

In its place, a more explicit model is becoming clear – one we’re calling Imperium Americanum.

And the investment implications are enormous.

From Pax Americana to Resource Sovereignty

The post-World War II liberal international order was American power expressed through institutions.

The U.S. built the IMF, World Bank, WTO, and NATO not just out of generosity, but because managing the system through institutions was cheaper – and more effective – than managing it directly.

In exchange, countries made a bargain: accept American dominance, hold American dollars, buy American debt, and, in return, enjoy access to American markets, American security guarantees, and the general stability of a U.S.-enforced global trading system.

And for decades, it worked. Global trade expanded. Hundreds of millions were lifted out of poverty. And direct great-power conflict remained rare.

But it always rested on three foundational assumptions that the world took for granted (which I’ve borrowed from Louis-Vincent Gave’s astute insight):

1. Dollar reserves = energy access. If you held U.S. Treasuries, you could always convert them into oil, gas, and food on the global market. Your financial reserves were your energy security.
2. American naval supremacy = open sea lanes. The U.S. Navy ensured that ships moved freely, that chokepoints stayed open, and that no regional power could hold the global economy hostage.
3. American benevolence = a stable trading order. The U.S. had an embedded interest in maintaining the system because it benefited most from it. 

Those assumptions are now under significant strain.

The Three Assumptions That Held the System Together – Now Failing

The first cracked in 2022, when the U.S. froze Russia’s dollar reserves – an act that revealed dollar holdings are a conditional promise, revocable at Washington’s discretion. 

The second broke when Iran closed the Strait of Hormuz and cheap drones challenged the effectiveness of the world’s most powerful navy.

And the third absorbed a major blow from tariff regimes that weaponized market access – as well as the Greenland takeover threat – which made clear that the U.S. is now willing to openly coerce even its closest allies.

You can see the shift in something as simple as energy reserves. South Korea – a close U.S. ally operating under the old assumptions – entered the Iran crisis with roughly 10 days of natural gas. China – less reliant on those assumptions – entered with closer to 50. One system optimized for efficiency in a stable global order. The other for resilience in a world where access can be cut off.

In other words, South Korea trusted the system. China prepared for its failure.

That shift in thinking is now driving policy.

The Resource Sovereignty Doctrine Explained

What has replaced the old order? A Resource Sovereignty Empire, unified by the ideology of “America First.”

This doctrine asserts that American power should be deployed not to maintain a global system that benefits everyone, but to secure, for America alone, the strategic resources necessary for true national independence. 

Energy independence. Financial independence. Technological independence. Food independence. 

The goal is to make the United States so comprehensively self-sufficient that no adversary can threaten American society through supply chain denial, energy cutoffs, or financial warfare.

If we consider the acquisition targets through this lens, the apparent chaos starts to look like a coherent map:

• Venezuela – light sweet crude oil in the Western Hemisphere, under Monroe Doctrine geography, available to replace Middle Eastern supply that geopolitical risk has made unreliable.
• Greenland – rare earth minerals essential for technological independence, plus Arctic shipping lanes that become strategic as climate change opens the north, plus denial of that territory to China and Russia.
• Iran – regional energy dominance, Hormuz leverage, and Trump has stated explicitly that post-conflict oil access is an objective.
• Canada – energy corridor control, fresh water (the most underappreciated resource in this framework), and supply chain integration on American terms rather than sovereign Canadian ones.
• Tariffs – not trade policy; industrial sovereignty policy. The explicit goal is to rebuild domestic manufacturing capacity in semiconductors, batteries, steel, and pharmaceuticals. The economic inefficiency is part of the tradeoff. You are paying a sovereignty premium.

This is not an empire that wants to govern foreign peoples or plant flags on foreign soil. It wants the resources without the administrative headache. It is imperialism updated for the 21st century – extraction without occupation, dominance without governance. Whether that proves more or less stable than classical empire is an open question. 

But critically, this ideology has domestic political legs. “We are securing American independence” is a story American voters will accept across party lines. The specific tactics may shift with administrations. The strategic direction will not. 

For this reason, we don’t view this as a four-year Trump trade but, rather, a decade-long structural regime change.

Resource Sovereignty and Its Economic Consequences

Why Resource Sovereignty Drives Structural Inflation

For the past three decades, the single greatest deflationary force was the efficiency of globalized supply chains. 

When you can manufacture anything anywhere on Earth and ship it cheaply to wherever demand exists, prices fall. That era is deliberately ending. 

Reshoring, tariffs, supply chain redundancy, resource nationalism – none of these are free. They all add cost. And those costs don’t go away when the next administration takes office. It’s inflation driven by design. 

You’re paying more because the system is being rebuilt to be less efficient – and more secure. The Federal Reserve cannot fix it with interest rate hikes because it isn’t demand-driven. Structurally elevated inflation is becoming embedded in the system.

What It Means for the U.S. Dollar

The dollar’s reserve status was always a bargain: we provide security and open markets, you hold our currency. As America rescinds that bargain, rational actors reduce their dollar exposure at the margin. 

Foreign central banks will begin to hold more gold, more energy, more physical commodities, and fewer U.S. Treasuries. That means less natural demand for American debt – which, combined with large U.S. deficits to fund military and industrial policy, means persistently elevated long-term interest rates. 

The bond market may look broken, but it’s just repricing in a world where the implicit global subsidy to U.S. borrowing costs is slowly being withdrawn.

How Resource Sovereignty Is Splitting the Global Economy

The single most consequential macro implication of Imperium Americanum is the fragmentation of the integrated global economy into competing blocs. 

Trade within blocs stays robust. Trade between blocs becomes expensive, politicized, and subject to weaponization at any moment. That means the correlation structures that underpin modern portfolio theory – the reason investors hold a globally diversified portfolio – break down. Assets that served as diversifiers stop doing so. The 60/40 portfolio, which depended on bonds hedging equity risk in a low-inflation world, faces structural challenges.