U.S. Sends Third Aircraft Carrier and Thousands More Marines to Middle East

The United States is sending a third aircraft carrier strike group and roughly 9,000 sailors and Marines to the Middle East, a U.S. official told the Associated Press on Thursday, October 1, 2026. The movement includes about 2,000 Marines aboard a separate amphibious group that left San Diego a day after the USS Theodore Roosevelt. The AP reported that the ships could put three U.S. carriers in the region as early as the end of October, while Al Jazeera and other reports pointed to the end of November. The reports came as President Donald Trump said it is “possible” he will step up bombing of Iran after the November 3 midterm elections. They rely on anonymous officials, and the reports reviewed do not show that any strike has been ordered.

What Is the U.S. Deploying?
According to the AP, the group of ships now heading to the region carries more than 7,000 sailors and about 2,000 Marines. It includes the Theodore Roosevelt carrier strike group, which deployed with the cruiser USS Chosin, and the USS Makin Island amphibious readiness group, which includes the USS John P. Murtha and USS Anchorage. USNI News reported that the Roosevelt, the flagship of Carrier Strike Group 9, left San Diego on Sunday, September 27, with Carrier Air Wing 11 embarked.
The Roosevelt would join the USS George H.W. Bush and USS George Washington, which the AP said are already in the region along with the USS Boxer amphibious group. The Washington normally operates in the Pacific and was moved to the Middle East to relieve the USS Abraham Lincoln, whose crew had been at sea for more than 260 days, the AP reported.
Personnel figures differ by outlet. The AP reported roughly 9,000 troops. Bloomberg, citing a U.S. official, reported 10,000 sailors and Marines, and the Wall Street Journal was reported to have given a range of 9,000 to 10,000. These figures appear to describe the same ships and personnel, and none of the reports reviewed says they should be added together. All of them count sailors and Marines, not Army soldiers.

The 2,000 Marines and USS Theodore Roosevelt
The Marines are not aboard the Roosevelt. They belong to the Makin Island amphibious readiness group, which USNI News said left San Diego on Monday, September 28, with the 13th Marine Expeditionary Unit. Al Jazeera, citing a U.S. official, reported that the group followed the carrier a day later and carries more than 2,000 Marines. Bloomberg put the number at 2,200. USNI News has described a typical Marine expeditionary unit as about 2,200 Marines and sailors, so the exact count of Marines may differ between reports.

The group’s destination has not been publicly specified. USNI News reported earlier that its destination was unknown. A U.S. official told Al Jazeera that two amphibious groups and three carriers will be positioned around Iran by the end of November. The Jerusalem Post, citing a U.S. official, described an additional Marine division heading to the region. That description has not been repeated by the AP, USNI News or Al Jazeera, which refer to a single amphibious group.

Why Is the U.S. Expanding Its Presence?
The deployment comes more than seven months into the war between the United States and Iran, which began on February 28. A U.S. official told Al Jazeera that the concentration of force would give Trump a wider range of options if he decides to act. Bloomberg similarly reported that it gives commanders more options if Trump chooses to escalate. In a Time magazine interview conducted Monday and published Thursday, Trump said it is “possible” he will ramp up bombing after November 3 and declined to give details, according to the AP. He also said he rejected Iran’s latest ceasefire proposal, which Al Jazeera described as a seven-day roadmap to reopen the Strait of Hormuz and resume nuclear talks in exchange for an end to the U.S. naval blockade, sanctions relief and a regional ceasefire.

Not every account frames the deployment as an escalation. USNI News reported on September 28 that the Roosevelt had begun a planned extended deployment, and The National, citing a U.S. official, said it is expected to relieve the Washington. The Washington Post reported, according to Iran International, that the newly deployed ships could instead replace vessels that have been at sea for months if Trump decides against expanding the conflict.

What U.S. Officials Said
The figures and timelines above come from U.S. officials who spoke to the AP, Al Jazeera and Bloomberg anonymously. The reporting reviewed contained no on-the-record statement from the Pentagon or the White House about the deployment, and i24NEWS reported on Thursday that the Pentagon had not commented. Al Jazeera’s Washington correspondent, citing unnamed Pentagon and White House sources, said the aim is to keep military options “on the table” regardless of how diplomacy unfolds and that the Pentagon does not plan to withdraw assets even if an agreement is reached. Al Jazeera also noted that Defense Secretary Pete Hegseth has said forces are “ready to go” if Trump orders new strikes.

What the Deployment Means for the Region
A carrier strike group combines an aircraft carrier, its air wing and escort warships, while an amphibious readiness group carries Marines who can operate from the sea. The AP reported that, with personnel already in place, the move would raise the U.S. naval presence to more than 20,000 sailors and Marines and hundreds of aircraft. It said the Navy last had three carrier strike groups in the Middle East in April, the first time since 2003. Al Jazeera’s correspondent said the new forces include F-35 fighter jets and add to roughly 50,000 U.S. service members already in the region. The Washington Post, as relayed by Iran International, reported planning that could bring up to 150 fighter jets.

A deployment does not by itself mean combat has begun or been ordered. The reports reviewed do not show that Trump has made a decision. On Friday, October 2, Iranian lawmaker Ruhollah Mousavi said any new U.S. attack would open new fronts in the region, according to Iran International. No formal Iranian government response to the deployment itself appeared in the reports reviewed.

What Remains Unclear
It remains unclear how many personnel are involved. Reports range from about 9,000 to 10,000, and the number of Marines is given as 2,000, more than 2,000 or 2,200. Arrival dates also differ, with the AP citing the end of October as the earliest possible date and other reports citing the end of November. The Navy’s top enlisted sailor said in August that Roosevelt families should expect more than seven months away, but how long the ships will stay in the region has not been confirmed.
It also remains unclear whether the ships will add to the existing force or replace ships already there. Bloomberg’s source said the George H.W. Bush has temporarily left the region, while the AP described it as in the region now. U.S. officials have not publicly confirmed the Makin Island group’s destination, whether more forces will follow, or whether the deployment is linked to any specific decision on Iran.

– Hamna Arshad