The Trump administration is preparing to intensify its campaign against Iran with economic measures Treasury Secretary Scott Bessent says will be unlike anything Tehran has faced before, even as the U.S. Navy confronts mounting pressure on its carrier fleet and a potentially multibillion-dollar overhaul of future warships.

Bessent said Washington plans to combine extraordinary economic isolation with the existing military blockade of Iranian ports, signaling that the administration is prepared for a prolonged confrontation rather than a quick resolution.

At the same time, the Navy is reportedly preparing to rotate the USS George Washington into the region to relieve the USS Abraham Lincoln after an unusually long deployment marked by reports of deteriorating conditions and crew fatigue.

And President Donald Trump has now ordered another major change: future Ford-class aircraft carriers are to abandon their electromagnetic aircraft-launch technology and return to steam catapults, reversing one of the Navy’s biggest technological shifts in decades.

Taken together, the developments point toward something much larger than another escalation with Iran. Washington appears to be preparing its military and economic infrastructure for a confrontation that could last far longer than originally expected.

Bessent: Economic Isolation “Like the World Has Never Seen”

Treasury Secretary Scott Bessent offered one of the administration’s strongest warnings yet when discussing the next phase of U.S. pressure on Iran.

The Treasury chief said the strategy would combine unprecedented economic isolation with the continued blockade of Iranian ports.

While Bessent did not detail the specific financial measures under consideration, his comments suggest Washington could be preparing to dramatically expand restrictions on Iran’s ability to trade, access foreign currency, move money internationally or sell commodities abroad.

The military component is equally significant.

Defense Secretary Pete Hegseth told reporters that the United States has the ability to maintain its naval blockade of Iran “indefinitely,” with Navy ships rotating into and out of the region as necessary.

That word matters.

An indefinite blockade would turn what might have initially been viewed as a temporary military operation into a potentially long-running commitment requiring ships, aircraft, sailors, fuel, maintenance and enormous logistical support.

For investors, the implications extend well beyond defense spending. A prolonged confrontation involving Iranian ports and the Strait of Hormuz could continue affecting energy markets, shipping costs, insurance rates and global supply chains.

USS George Washington Reportedly Moving In

The strain of sustaining that presence may already be showing.

The USS George Washington is reportedly heading toward the region to replace the USS Abraham Lincoln, whose deployment has stretched beyond 250 days.

The Lincoln had originally been expected to complete its deployment months earlier.

The George Washington carrier strike group departed Vietnam on August 12, according to the Navy, positioning another major U.S. naval asset for potential operations in the region.

The rotation comes amid increasingly troubling reports about conditions aboard the Lincoln.

Rep. Mike Levin of California sent a letter to Hegseth and Acting Navy Secretary Hung Cao citing complaints from military families involving moldy showers, broken toilets, lack of hot water, shortages of fresh produce and other supply problems.

The letter also cited an “overwhelming workload” contributing to extreme fatigue and burnout among sailors and Marines.

Hegseth has pushed back strongly against the reports, saying conditions aboard the carrier have been “completely misrepresented.”

U.S. Central Command has separately denied claims of a brawl aboard the Lincoln and said no American service members were killed after Iranian media alleged that seven Navy personnel had died during a violent clash.

The competing claims highlight another increasingly important battlefield in the conflict: information.

Trump Orders Navy Back to Steam

While the Navy manages its immediate demands in the Middle East, Trump has ordered a dramatic change to the aircraft carriers that could form the backbone of the fleet decades from now.

Trump signed a national security memorandum directing the Navy to replace electromagnetic aircraft catapults on future Gerald R. Ford-class carriers with older steam-powered systems.

The first three Ford-class carriers, the USS Gerald R. Ford, USS John F. Kennedy and USS Enterprise, will retain their electromagnetic systems.

But the fourth carrier, the future USS Doris Miller, and subsequent ships are slated to return to steam.

Trump has criticized electromagnetic catapults for years, arguing that steam systems are simpler and more dependable.

The White House says the change will give future carriers “battle-tested” systems that are more resilient and easier for the U.S. industrial base to support.

But the decision could come with an enormous price tag.

Reversing Course Could Cost Billions

The Ford-class carriers weren’t designed around steam catapults.

Their internal architecture reflects the Navy’s transition toward electrical systems, meaning converting future ships back to steam could require extensive redesign work.

Naval analyst Bryan Clark of the Hudson Institute estimates the change could cost billions of dollars.

The timing makes the decision even more consequential.

General Atomics, which produces the Electromagnetic Aircraft Launch System, says its work on the Doris Miller’s catapult and arresting systems is already nearly 50% complete.

The company warned that changing direction now could create significant cost, scheduling and integration risks.

There is also an operating-cost debate.

The Ford class requires roughly 500 fewer sailors than previous Nimitz-class carriers, partly because its newer systems require fewer personnel to operate and maintain.

Early Navy data has suggested the Ford could cost approximately $100 million less annually to operate than a Nimitz-class carrier.

And after years of technical problems during development, the electromagnetic system has accumulated a substantial operational record.

As of March, nearly 37,000 aircraft launches had been conducted using the Ford’s four electromagnetic catapults, according to Navy data.

A Bigger Fight Over America’s Military Technology

The debate is ultimately about more than steam versus electricity.

China is deploying electromagnetic catapults aboard its newest aircraft carriers, while France also plans to incorporate the technology into its next-generation carrier.

That has fueled criticism that abandoning the system could allow U.S. rivals to narrow America’s technological advantage.

General Atomics warned that the decision could have broader consequences for carrier readiness and U.S. technological superiority.

Supporters of Trump’s approach see the calculation differently.

Their argument is that sophisticated technology isn’t automatically superior on a warship expected to survive combat thousands of miles from home. Reliability, repairability and the ability of America’s industrial base to manufacture replacement components can matter just as much as raw technological capability.

That debate is becoming increasingly urgent as the Navy faces the possibility of sustained operations against Iran while simultaneously trying to prepare for China’s rapidly expanding fleet.

Trump Wants a Bigger Shipbuilding Push

The carrier decision is only one piece of a much broader naval initiative.

Trump’s memorandum also directs the Pentagon to pursue greater foreign investment in U.S. shipbuilding.

Under the proposal, foreign shipbuilders could initially construct as many as two vessels overseas while simultaneously investing in American shipyards and training U.S. workers.

A similar strategy has already been used by the Coast Guard for new icebreakers involving Finland’s Rauma Marine Constructions and Bollinger Shipyards in Louisiana.

The administration is also calling for the construction of a new public naval shipyard, which the White House says would be the first opened in 83 years.

Another proposal would establish a centralized submarine “Component Repair Center” capable of rapidly providing replacement parts and repairing damaged components.

These moves address a vulnerability military planners have warned about for years: America can build some of the world’s most sophisticated warships, but its shipbuilding and repair capacity has struggled to keep pace with operational demands.

The Navy Is Already Spending Heavily

The numbers involved are enormous.

The Navy recently awarded General Dynamics Electric Boat and HII Newport News Shipbuilding a $76.6 billion agreement covering nine Virginia-class attack submarines and five Columbia-class ballistic missile submarines scheduled for delivery through 2038.

The Navy’s long-term goal is to produce two Virginia-class submarines and one Columbia-class submarine annually.

Now add potential carrier redesigns, a new naval shipyard, additional repair infrastructure and the cost of maintaining a prolonged Middle East deployment.

The result could be another major wave of defense spending.

That could put shipbuilders, defense contractors, component manufacturers and naval technology companies under increasing investor scrutiny as Washington attempts to expand both the size and resilience of the fleet.

Iran Is Exposing a Bigger U.S. Challenge

The immediate story is the escalating confrontation with Iran.

But the deeper issue is whether America’s military infrastructure is prepared to sustain prolonged conflicts while simultaneously deterring other major adversaries.

Keeping a naval blockade operating “indefinitely” requires far more than positioning an aircraft carrier off Iran.

Ships eventually need maintenance. Sailors need rest. Supplies need replenishment. Aircraft need repairs. Carriers need escorts. And every vessel deployed to one theater is unavailable somewhere else.

The Abraham Lincoln’s extended deployment offers a glimpse of those pressures.

The reported arrival of the George Washington may provide relief, but it doesn’t eliminate the underlying problem.

Washington is simultaneously asking the Navy to maintain a major Middle Eastern operation, modernize its fleet, expand submarine production, rebuild domestic shipyards and prepare for the possibility of a future conflict in the Pacific.

That is an extraordinarily expensive undertaking.

And Bessent’s promise of economic pressure on Iran “like the world has never seen,” combined with Hegseth’s assertion that the blockade can continue indefinitely, suggests the administration isn’t preparing for the confrontation to end anytime soon.

For markets, that means Iran remains more than a geopolitical headline.

A prolonged standoff could continue influencing oil prices, shipping routes, defense spending and federal expenditures, while creating new opportunities and risks across the energy, transportation and defense sectors.

The battle over Iran may be taking place thousands of miles away. But its economic consequences, and the massive military buildup required to sustain it, could increasingly be felt at home.