Jeremy Corbyn

Corbyn has represented Islington North as a Member of Parliament since 1983, making him one of the longest-serving MPs in the Commons. He led the Labour Party from 2015 to 2020 before losing the party whip over the handling of antisemitism findings. He stood successfully as an independent in 2024, defeating Labour's official candidate in his own seat, and chairs the Nuclear Disarmament campaign's parliamentary group.

Jeremy Corbyn tabled a bill in the UK Parliament in March 2026 requiring parliamentary approval before foreign nations can use British bases for military operations, responding directly to the government's authorisation of RAF Fairford and Diego Garcia for US strikes on Iran. The bill attracted only 11 co-sponsors in the 650-seat Commons, and Keir Starmer formally rejected calls for a parliamentary vote, framing base access as "specific and limited defensive purposes."

The bill's slim support illustrates the limits of parliamentary opposition to executive war-making powers. A cross-party Coalition, including the Green Party and independent MPs, is forming around Corbyn's position, but YouGov polling showing 58% of Britons oppose US base use has not translated into votes.