Economic 'development' driven by global economic forces produces speci
fic expressions of 'community' in places where large new economic proj
ects are to be located. This paper draws on contemporary geopolitical
literature to theorise community identity as partly formulated in resp
onse to external 'threats'. A comparative study of community mobilisat
ion in response to proposals to locate coastal superquarries on the Is
le of Harris, Outer Hebrides, Scotland, and Cape Breton, Nova Scotia,
Canada, suggests the applicability of this theoretically framework for
extending geographical analysis of community identity and the politic
s of place.