Londoners can expect to be caught in the crossfire as union leaders declare war over today's massive cuts to London Underground.
Tube bosses plan to close every ticket office and axe 950 jobs in a bid to save £50m a year.
The cutbacks will be introduced in 2015. RMT General Secretary Bob Crow said the union would "fight these plans with every tool at our disposal and that includes political, public and industrial campaigning on an unprecedented scale."
London Underground also announced the launch of a new 'Night Tube". For the first time, trains will operate 24-hours a day on some lines at weekends.
The extended service on parts of the Central, Jubilee, Northern, Piccadilly and Victoria Lines is expected to create 200 jobs. London Mayor Boris Johnson said:
This will not just boost jobs and our vibrant night-time economy, it will further cement London's reputation as the best big city on the planet in which to live, work, visit and invest.
London Underground claims the job losses caused by ticket office closures can be achieved without compulsory redundancies but the unions are almost certain to ask their members to back a campaign of strikes.