Block the Builders is a campaign in Great Britain which aims to nonviolently prevent the building of a new laser facility at AWE Aldermaston, the first stage of a series of proposed developments which would enable AWE Aldermaston to build new nuclear weapons. Block the Builders holds a monthly nonviolent blockade of the site. As and when details of companies profitting from the development of new nuclear weapons emerge, we also protest at that companies offices or site.