HUNDREDS of thousands of workers will decide within hours whether to join the ranks of what is now poised to be the biggest co-ordinated public-sector strike in years.

Two million public-sector workers could now join a July 10 mass walkout with the result of a ballot of general union GMB’s 220,000 local government members revealed this week.

Unison, Unite and PCS members are also being balloted in protest at a pay offer worth 1 per cent for most local authority employees.