US sends third carrier strike group toward Iran as military buildup widens

The United States is sending a third aircraft carrier strike group toward waters around Iran as part of a wider military buildup in the Middle East. The USS Theodore Roosevelt left San Diego on Sunday and is heading for the region, according to the supplied reporting. A day later, the Makin Island amphibious ready group also sailed from San Diego, adding more than 2,000 Marines to the deployment.

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US officials said the combined movement could add about 9,000 to 10,000 personnel to the region by the end of November. The Theodore Roosevelt is accompanied by the guided-missile cruiser USS Chosin and destroyer squadrons, with Carrier Air Wing 11 embarked, including F-35C and F/A-18 Super Hornet jets, electronic warfare aircraft and early-warning aircraft. The Makin Island group includes the USS John P.

Murtha and USS Anchorage, and is carrying the 13th Marine Expeditionary Unit. The buildup comes as the US already maintains a large military presence in the Middle East, with more than 50,000 personnel in the region. The supplied reporting says two carriers are already operating in the area, while the USS Boxer amphibious ready group is also in theatre.

It also says the Navy has kept a two-carrier presence in the region since the war on Iran began on 28 February, and that the Theodore Roosevelt is expected to relieve the USS George Washington. The scale of the deployment is significant because it would give Washington a wider range of military options around Iran at a time of continuing tension. A US official said that by the end of November, three carrier strike groups and two amphibious ready groups could be positioned around Iran.

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The same account said leaders would have many options for dealing with Iran, underscoring the strategic purpose of the buildup. The movement also reflects a broader pattern of sustained US force posture in the region. The supplied material says that if the George Washington remains on station until the Theodore Roosevelt arrives, the US could briefly operate three carrier strike groups in the region at the same time.

It adds that such an overlap would be only the second since April, and the first since 2003 to involve three carriers in the region at once. What remains unclear is whether all of the planned forces will arrive on the same timetable and whether the carrier groups will overlap in theatre. It is also not clear how long the expanded posture will last once the Theodore Roosevelt reaches the region.

The next developments to watch are the movement of the ships, any further official statements, and whether the buildup changes the diplomatic or military calculations around Iran.

The United States is deploying a third aircraft carrier toward waters around Iran as part of a broader military buildup in the Middle East. A US official said the USS Theodore Roosevelt carrier strike group left San Diego on Sunday and was followed a day later by the Makin Island Marine Expeditionary Force. The deployment comes as Washington keeps military options open while also leaving room for diplomacy.

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The official said the Makin Island force is carrying more than 2,000 Marines. By the end of November, three aircraft carriers and two amphibious landing groups are expected to be positioned around Iran, according to the same account. The buildup also includes additional air power, including F-35 fighter jets, layered on top of roughly 50,000 US service members already stationed in the region.

The official said the concentration of forces would give President Donald Trump a wider range of options if he decides to act. Defense Secretary Pete Hegseth has said the forces are ready to go if Trump orders new strikes. Trump has also kept the threat of military action alive in public remarks, while saying he would prefer not to spell out his intentions before November's midterm elections.

The deployment matters because it signals that the US is maintaining pressure on Tehran while talks and threats continue in parallel. The military posture is being paired with new economic measures, including sanctions this week on Iran's rail and automotive conglomerates. According to the account, the aim is to keep military options on the table regardless of how diplomacy develops.

The broader context is a sustained US force posture in the Middle East that has grown alongside tensions with Iran. The official description suggests Washington is trying to preserve leverage through both military and financial pressure. At the same time, Iran has been seeking a seven-day roadmap, conveyed through Qatar, that would reopen the Strait of Hormuz and resume nuclear talks in exchange for an end to the US naval blockade, sanctions relief and a regional ceasefire covering Lebanon and Yemen.

What remains unclear is whether the buildup will lead to any direct military action or whether it is intended mainly as a deterrent. It is also not clear how far the diplomatic track can progress, given the reported US position that sanctions relief and frozen funds are non-negotiable. The next developments to watch are the movement of the carrier groups, any further statements from Washington, and whether Iran responds publicly to the pressure campaign.

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