Liz Truss has joined 106 former world leaders in calling for the UK, US and Europe to undertake a harder strategy to Iran.

The former prime minister signed a letter, together with former US vice-president Mike Pence, condemning the availability of drones to Russia.

The letter additionally referred to as for the Islamic Revolutionary Guards Corps to be held accountable for assassination makes an attempt and terrorist plots overseas.

It got here as hacked official paperwork from Iran’s international ministry revealed the rogue state gave the regime’s ideological enforcer a billion {dollars} of crude oil to promote to finance terror operations throughout the globe.

And it receives 990,000 barrels out of 1.46 million produced each day.

The paperwork – stolen throughout a cyber raid by opposition group NCRI/MEK and seen by the Sunday Express – additionally confirmed the IRGC is spending thousands and thousands of {dollars} on the acquisition of its personal fleet of oil tankers.

Last evening consultants warned affording the Revolutionary Guards such autonomy might allow Tehran to bypass sanctions imposed by the West.

Supreme Leader Ali Khamenei has been implementing a plan referred to as the “Resistance Economy” to make use of the armed forces to achieve management over all financial hubs.

In the letter, the 107 former leaders referred to as for Joe Biden, Rishi Sunak and the EU to “take decisive steps against the current regime. This includes blacklisting the Revolutionary Guards”.

Britain is beneath growing strain to comply with the US’s lead and proscribe the IRGC as a terrorist organisation.

It is alleged by MI5 to have plotted the assassination or kidnap of not less than 10 British nationals final yr.

While the transfer would have Home Office backing, it's being opposed by the Foreign Office which fears it will trigger Iran to chop off all relations.

But Catherine Perez-Shakdam, from Elnet UK, which seeks strengthened ties between Britain and Israel, mentioned: “If the UK and Europe doesn’t push back now, it will be much more difficult in five years’ time.”