Washington. About 2,500 US Marines are being deployed to the Middle East, a US official said on Friday, as American and Israeli strikes keep pounding Iran and the Islamic Republic keeps attacking Persian Gulf shipping and energy infrastructure.

The official, who spoke on condition of anonymity to discuss sensitive military plans, said that elements from the 31st Marine Expeditionary Unit and the amphibious assault ship USS Tripoli have been ordered to the Middle East. The move would represent a major increase in troops in the region.

Marine Expeditionary Units are not only trained and equipped to conduct amphibious landings, but they also specialize in bolstering security at embassies, evacuating civilians, and providing disaster relief. While the deployment is a major increase of troops to the region, it does not necessarily indicate that a ground operation is imminent or will take place at all.

The 31st Marine Expeditionary Unit, as well as the Tripoli and other amphibious assault ships carrying the Marines, are based in Japan and have been at sea in the waters of the Pacific Ocean for the past several days, according to images released by the military. Their location puts them more than a week away from the waters off Iran.

Defense Secretary Pete Hegseth, meanwhile, offered new details on the operation against Iran at a Friday news conference from the Pentagon, noting the impact of US and Israeli air strikes on the Islamic Republic.

Hegseth said that over 15,000 enemy targets have been struck, which is more than 1,000 a day since the war began on Feb. 28.

He also said President Donald Trump is focused on ending Iran’s ability to manufacture nuclear weapons for good.

Hegseth would not say whether ground forces will be needed to secure Iran’s supply of enriched uranium or its nuclear facilities, but said the US is considering a range of options. He said he would welcome a decision by Iran’s leaders to voluntarily give up their program.

“We’ve said from the beginning: deny Iran nuclear weapons,” Hegseth said.

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