Anti-nuclear weapons protesters at Atomic Weapons Establishment's (AWE) Burghfield site oppose the renewal or replacement of Trident.
Burghfield and AWE Aldermaston provide the warheads for the submarine-launched missile system.
The activists are protesting as the site provides war heads for the uk's largest nuclear submarines.
The UK's existing four ballistic missile submarines are to be renewed from the late-2020s.
Anti-nuclear protesters have chained themselves together shutting a main road outside AWE Burghfield.
The Protesters have planed to make this last 30 days.