A cross-party group of more than 50 MPs and Lords peers in the UK have demanded that Iran’s Islamic Revolutionary Guard Corps be designated a terrorist organization.

The cross-party group, which includes former home secretaries, Suella Braverman and Priti Patel, requested in an open letter to The Times.

The IRGC is a key component of Iran’s military and power-projection capabilities. More than 125,000 personnel serve in its ranks, spread across wings including the Quds Force, the overseas element responsible for liaising with and supporting militias in Yemen, Lebanon, Iraq and Syria. In recent years, the IRGC has also built a relationship with Hamas in the Gaza Strip.

The open letter, signed by 134 people, follows last weekend’s Iranian attack on Israel, which signatories described as the “latest chapter of destructive terror by the IRGC.”

It says: “The government has combated extremism and terrorism by proscribing Hamas and Hezbollah but it is not enough.

“The IRGC is the primary source of ideological radicalization, funding, equipment and training for these groups.

“The government must act against the root cause and proscribe the IRGC as a terrorist organization.”

Iran’s attack was a response to Israel’s strike on its consulate in Damascus that killed 11 people, including senior commanders.

Former US President Donald Trump designated the IRGC as a terrorist organization in 2019, a year before the assassination of Qassem Soleimani, head of the Quds Force.

But the UK has been reluctant to follow the US measure for fear of breaking diplomatic communication channels with Tehran.

As part of sanctions on Iran targeting its nuclear program, however, the UK sanctioned the IRGC, freezing the assets of its members and implementing travel bans.

A terrorist designation in the UK would put the IRGC on par with Daesh and Al-Qaeda, and make it illegal to support the group, with a maximum penalty of 14 years’ imprisonment.

The 134 signatories said the IRGC has “never posed a greater threat to the UK,” accusing “thugs” belonging to the group of stabbing an Iranian dissident in London last month.

The letter was coordinated by the UK-Israel All Parliamentary Party Group, which includes former Immigration Minister Robert Jenrick.