Iran and its allies have damaged at least 16 US military installations across eight countries in the Middle East, with some sites rendered “virtually unusable.”

Axar.az reports, citing CNN, according to satellite imagery and sources in the United States and Gulf Arab states, the affected facilities represent a majority of US military positions in the region.

One congressional aide familiar with damage assessments said there was “a spectrum of assessments” regarding the extent of destruction.

“From a pretty dramatic side, of the whole facility is destroyed and needs to be shut down, to leaders who say these things are worth repairing due to the strategic benefit they give the US,” the aide said.

Another US source familiar with the situation said: “I’ve never seen anything like this before.”

According to the report, Iranian strikes have primarily targeted radar installations, communications systems, and aircraft infrastructure, with many of the systems described as expensive and difficult to replace. The congressional aide said, “It’s notable they really identified those facilities as the most cost-effective targets to hit.”

The Pentagon’s comptroller Jules “Jay” Hurst III told lawmakers that the war has cost the US at least $25 billion so far, while other estimates cited by CNN place the figure closer to $40–50 billion.

US allies in the Gulf, which host American bases, have reportedly borne the brunt of the attacks and privately criticized Washington’s handling of the conflict. One Saudi source told CNN: “The war showed us that the alliance with the US cannot be exclusive and it is not impregnable.”

The Pentagon has not publicly confirmed the full extent of the reported damage.