LONDON - One of the UK’s largest trade unions is to ban its members from visiting Israel and the Palestinian territories on delegations organized by the Trade Union Friends of Israel (TUFI), a London-based organization supporting cooperation between Israeli and Palestinian workers.

The GMB, which has over 617,000 members from an array of sectors, voted on Thursday at its annual conference in Plymouth to uphold a 2011 decision to “take a lead in driving forward the boycott a