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The SEG provides the staff for the close escort and traffic management of nuclear weapons convoy movements. During these convoy movements it works alongside military personnel from Fleet Protection Group Royal Marines and Atomic Weapons Establishment civilian staff. Rail escorts include radiological safety escorts with railway personnel. There is liaison with local police forces whilst the convoy is en route. Nuclear weapon convoys are regularly monitored by the nuclear disarmament campaigning network "NukeWatch UK" and convoys have, on occasion, been disrupted by anti-nuclear weapon protesters.