SIR Keir Starmer was accused today of failing to learn from the Iraq war after allowing British bases to be used by the US in strikes against Iran.

Former Labour leader Jeremy Corbyn slammed the PM for dragging Britain into another war because he would rather “appease [US President] Donald Trump than stand up for international law.”

He added: “Allowing British bases to be used in an illegal war of aggression is a catastrophic and historic mistake.

“War is not a game. This shameful decision makes Britain complicit in the devastating consequences ahead — and jeopardises the safety of us all.”

Labour MP lan Byrne added: “We must hold firm to a simple but vital truth: Opposing a brutal, repressive regime does not oblige us to support an illegal and reckless war. 

“We can stand unequivocally against the authoritarianism and human rights abuses of the Iranian regime whilst also refusing to back a dangerous, unlawful and ill-thought-out military intervention that will only deepen suffering and conflict.

“The lessons of Iraq must never ever leave a Labour MP, or a Labour PM.”

Sir Keir granted permission on Sunday for the US to use British bases to target Iran’s missile launchers and stores to help protect countries targeted by Tehran.

But the US president later said that he was “very disappointed” in Sir Keir for initially refusing to allow the use of the UK-US Diego Garcia base to target Iran.

He claimed it “took far too long” for the Prime Minister to change his mind, telling the Telegraph: “It sounds like he was worried about the legality.”

In a Commons statement, Sir Keir said: “President Trump has expressed his disagreement with our decision not to get involved in the initial strikes, but it is my duty to judge what is in Britain’s national interest.”

He claimed that a drone that hit RAF Akrotiri in Cyprus hours after his announcement on Sunday had been launched beforehand and was not in retaliation.

About 300,000 Britons are believed to be in countries targeted by Iran, with 102,000 registering their presence with the Foreign Office.

Today the Cypriot government said that two further unmanned drones heading towards the base had been intercepted.

Grassroots left-wing group Momentum said: “We must not follow the US into another illegal war.”