Despite Pete Hegseth's boasts from the Pentagon this afternoon, it's still unclear how successful the US strikes on Iran last night were in reality.
Matthew Savill, director of military sciences at the Royal United Services Institute defence thinktank, says the nature of the facilities at Fordow under a mountain makes it difficult to establish the success of Operation Midnight Hammer.
He says: "Imagery can't show much about the damage down at the centrifuge enrichment hall, so the US and Israel will be relying heavily on intelligence from inside the Iranian system."
If the Iranians choose a broader military response against US forces, there are targets across the Middle East, especially in Qatar, Bahrain, Iraq and Saudi Arabia, Savill adds.
But he explains such attacks would risk widening the conflict at a time of extreme vulnerability for the Iranian regime, and some US forces already appear to have been dispersed from locations such as Qatar.
When it comes to attacks on US bases, UK troops could end up in the firing line, he adds.
Savill explains: "The UK is present at many of these locations, and would need protection from ballistic missiles provided by US Patriot batteries, while UK Typhoon jets at Cyprus could provide some air defences against drones and cruise missiles."
The size of the missile salvoes being launched at Israel is also decreasing in size, Savill notes, suggesting Iran's stockpiles are slowly running down.
Israel, however, is unlikely to stop striking Iran, he thinks, given Benjamin Netanyahu's stated aim of causing wider damage to the Iranian regime.