The war on Iran is stripping the western Pacific of US naval forces

The Navy moved five destroyers homeported in Yokosuka, Japan, into U.S. Central Command’s area of responsibility. The Yokosuka-based aircraft carrier George Washington was deployed there too. These ships were intended to support operations in the Middle East rather than maintain their usual Western Pacific presence.

The move matters because Japan-based ships are a major part of America’s visible military presence near China and other regional allies. A carrier normally operates with escorts and support vessels, so deploying George Washington involves more than removing one ship. It also shifts the surrounding force that usually trains, patrols, and visits allies.

The article says some destroyer crews have been told they will not return home until 2027. Operation Epic Fury officially ended in June, but the Pentagon is keeping a large force in the region and waiting to see whether President Trump will order more action.

The article describes a substantial transfer, not a small temporary detachment. Five destroyers based in Yokosuka are supporting U.S. Central Command, while the Yokosuka-based aircraft carrier George Washington is also deployed there. That means half of the destroyers assigned to the Japanese port are unavailable for normal Western Pacific missions.

The key mechanism is concentration of force around the carrier. Aircraft carriers deploy with several other types of ships, according to Ralph Cossa. Therefore, moving George Washington removes not only the carrier but also the escorts and other vessels that would normally accompany its battle group. The article does not give a full ship count for that group.

The disruption may last years rather than months. Navy officials told crews of at least some destroyers that they would not return home until 2027. The Pentagon is retaining a large Middle East force even after Operation Epic Fury officially ended in June.

In standard naval usage, a carrier strike group is an aircraft carrier deployed with accompanying warships and support vessels. The carrier provides the central aviation capability, while the other ships help protect it, support operations, and sustain the deployment. The article emphasizes that an aircraft carrier never represents only one ship in practical regional planning.

George Washington illustrates the mechanism. When the Yokosuka-based carrier moved to U.S. Central Command, several other ships normally associated with its carrier battle group also became unavailable in the Western Pacific. Ralph Cossa said those ships usually show the flag, reassure allies, and demonstrate U.S. commitment.

The result is a wider reduction in visible naval power than the carrier’s absence alone suggests. Planned carrier visits and battle-group visits can be disrupted. The article also says five of Yokosuka’s 10 destroyers are separately supporting the Middle East, deepening the Pacific gap.

Keeping the ships in the Middle East weakens the United States’ visible presence in the Western Pacific. Ralph Cossa said allies had planned carrier and carrier battle-group visits months ahead. Those visits can no longer happen as expected, making American commitments harder to demonstrate and potentially damaging credibility with partners.

The force shift also affects training and readiness. Ships that would normally show the flag, exercise with allies, and prepare for regional contingencies are instead supporting Central Command. Katherine Kuzminski said the extended Middle East operations make it difficult for the Navy and combatant commands to determine future requirements. Resources cannot be shifted instantly if an Indo-Pacific incident occurs.

PACOM says training continues, citing the Keen Sword exercise and the Theodore Roosevelt carrier strike group. Still, the article contrasts that activity with the long absence of Japan-based forces. The concern is that sustained Middle East commitments could leave fewer assets ready for a Pacific crisis.

The National Security Strategy says preventing conflict requires a vigilant Indo-Pacific posture. It also says the Middle East should no longer dominate American foreign policy. The National Defense Strategy, released in January, named the U.S. homeland and deterring China as its top priorities. These documents therefore establish the intended direction of national security policy.

The mismatch appeared five weeks later, when President Trump launched a war against Iran. Although Operation Epic Fury officially concluded in June, the Pentagon kept a large force in the region, conducted occasional attacks, and waited to see whether more action would be ordered. That continuing demand drew Japan-based naval forces away from the Pacific.

PACOM insists its Indo-Pacific commitment remains steadfast. Its spokesperson cited readiness and Keen Sword, while Lt. Gen. George Rowell called deterrence the command’s highest duty. Critics say actual deployments still do not align with the stated strategies, complicating planning and credibility.

The article presents the current shift as part of a longer pattern. U.S. administrations have moved military attention between the Middle East and the Indo-Pacific rather than maintaining one unchanging regional focus. That history helps explain why allies question whether the latest Pacific commitment will last.

Under President Barack Obama, the Pentagon announced a 2012 “rebalance to the Indo-Pacific region.” The plan included moving more troops and ships into the area. In 2016, Defense Secretary Ash Carter said the rebalance was not transient but “enduring,” signaling that the shift was meant to continue beyond a short-term deployment.

The direction changed the following year. During the first Trump administration, a State Department official declared the rebalance officially dead. The current article describes another reversal: strategy documents prioritize the Indo-Pacific, but ships assigned there are supporting the war against Iran. The continuing Middle East deployment again tests whether Pacific commitments will endure.

Military deterrence seeks to prevent conflict by convincing a potential aggressor that attacking would bring unacceptable costs or fail to achieve its goals. It does not require fighting first. Instead, credible forces, readiness, and clear commitments are supposed to make aggression look infeasible.

PACOM describes its framework as “denial defense in the first island chain.” Its deputy commander, Lt. Gen. George Rowell, said the command wants to prove that military aggression will be infeasible, escalation will be catastrophic, and the costs of conflict will outweigh any gains. Naval ships help make that promise visible through patrols, exercises, and allied operations.

The article highlights a practical problem: many forces normally used for that Pacific presence are supporting the Middle East. PACOM says training and exercises continue, including Keen Sword. Critics argue that keeping Japan-based ships away weakens the credibility and readiness needed to deter China or respond quickly to an Indo-Pacific incident.