The White House has issued a stark ultimatum to Tehran: cease hostilities or face the consequences. But Iran's supreme leader, Ayatollah Khamenei, has dismissed the demand, calling it 'an empty threat from a lame duck.' The standoff leaves Downing Street in a bind.
Whitehall sources tell me the PM's strategy is 'hanging by a thread.' No one in Cabinet wants to commit troops. But the Americans are leaning hard.
'They expect us to fall in line,' a senior Foreign Office figure muttered over a drink last night. 'They always do.' The problem is domestic.
Labour MPs are restless. The shadow frontbench smells blood. 'This is Suez all over again,' one backbencher whispered.
The numbers are ugly. A leaked poll from last week shows 62% of Britons oppose any military involvement. The PM's approval rating is already in the toilet.
A conflict could flush it entirely. But the special relationship has a price. And the price is always paid in British blood.
The mood in the Lobby is grim. We remember Iraq. We remember Libya.
The Foreign Secretary is due to make a statement tomorrow. Expect careful, measured language. Expect no firm commitments.
Expect the knife edge to remain sharp. Meanwhile, the Iranians are playing for time. Their proxies are already testing UK assets in the Gulf.
A skirmish in the Strait of Hormuz is only a matter of time. The MoD is on high alert. But no one is saying the quiet part out loud: this is a crisis with no good exit.
The PM's best hope is that Trump blinks first. But Trump never blinks. So we wait.
We watch. We prepare for the worst.
