In 2012, the United Kingdom announced the creation of a “Hostile Environment” for ‘illegal’ migrants. Immanent in the idea that the territory of a nation-state can be a hostile space to specific bodies is a set of protocols that differentiates between the citizen and the migrant. This investigation evidences how hostility is designed into environments intended to eject the migrant from the sovereign and from life. From weaponizing the sea to the denial of basic services, these risks are only accepted when migrant lives are at stake. The project puts forward a campaign that operates on two actions inside and outside of legal infrastructure – political accountability through a public inquiry and social transformation through tactics of resistance. Beginning with the mobilization of citizens against complicity, a handbook equips us with tools to resist the policy and provide an infrastructure of care. Bit by bit, it is a field guide to shifting towards a socialized resistance of the dematerialized border. We can no longer negotiate our terms of care as temporary acts. Building solidarity and kinship is how we resist against the tired notions of us and ‘the other’, to move forward to a new politics of care for each other.