One expert said it was 'highly unlikely' the US Fifth Fleet will ever return to the Gulf state of Bahrain.
At least a dozen US military sites across the Gulf region have been so badly damaged by Iran's retaliation to US and Israeli attacks that their presence now creates significantly more vulnerabilities than it does benefits, a slate of Middle East experts argued on Thursday.
The original revelation about the state of the bases was first reported in The New York Times last month, in which they were described as "all but uninhabitable".
The Trump administration has yet to acknowledge the extent of the damage sustained.
"This is the physical architecture of American primacy, and Iran has essentially rendered it useless in the span of a month," Marc Lynch, director of the Project on Middle East Political Science at George Washington University, said at the Arab Center Washington DC's annual conference.
"We are not seeing a full and accurate reporting of the extent of damage that has been done to US bases in the region," he added.
Access to these sites - some of which are logistical hubs and not necessarily active bases - is tightly controlled by the Pentagon.
Last month, they banned the photography and dissemination of any videos of missiles in their skies, leading many to speculate whether the motive was to shield US bases as they launched attacks on Iran.
Gulf leaders had previously pledged not to permit the US to use bases on their territory for the war.
"My friends in the region, they'll send me pictures of the base in Bahrain," Lynch said, referring to Naval Support Activity on the island, which is home to the US Fifth Fleet and houses some 9,000 military personnel.
"The bases around the region are suffering real damage, and I think it's very unlikely that we're ever going to go back and put our Fifth Fleet back in Bahrain. It's too vulnerable," he added.
"So in a sense, the entire purpose of 'America's Middle East' has come crashing down. We don't have an alternative way yet of articulating or thinking about what might replace it."
Altogether, there are 19 disclosed sites run by the US military across the Middle East region - an area that runs from Egypt across to Iraq, and from northern Syria down to southern Oman.
These sites can encompass up to 50,000 soldiers altogether.
The deployment of US troops to the region dates back to the late 1950s, but the current size and scope of the active bases in the Gulf specifically materialized after the 1990 Gulf War, in which the US intervened.
The deal was for protection in exchange for oil and petrodollars.
But in light of the US-Israeli war on Iran, that transaction hasn't worked out so well for the Gulf, which now has severely depleted interceptor stocks, was forced to shut down airports and schools, and has most recently taken Iranian hits to its energy production facilities.
"When the benefits of a transactional approach like that begin to erode so much from one side, then that relationship is going to fray," Shana R Marshall, associate director of the Institute for Middle East Studies at George Washington University, said at the conference.
It is, however, not the first time, she acknowledged.
Marshall pointed to the 1996 Khobar Towers bombings in Dhahran, Saudi Arabia, when 19 US soldiers were killed.
Al-Qaeda leader Osama Bin Laden's stated grievances also initially revolved around the basing of US military forces in the Gulf, Marshall noted.
"Close relations with the US, whether it's US military bases or promoting normalization with Israel, or enforcing US sanctions or maintaining the dollar peg of their currencies, is less a benefit now than actually a liability," she said.