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Human geographers have long noted the colonial tropes and frontier imaginaries used to stimulate investment and normalize predatory property speculation within North American cities. Drawing on the insights of indigenous scholars and theorists of settler colonialism, in this article we argue a need to move beyond an analogical deployment of the "frontier" as a mere trope or imaginary and suggest that in settler colonial contexts, like the United States, the frontier and its structuring logic remain an ongoing feature of racial governance and capital accumulation over time. To develop this argument, we examine a genealogy of multiple and heterogeneous cycles of colonization, dispossession, and resistance in Tucson, Arizona. Attending to the racial and racist violence that shapes this history, we consider how the devaluation of nonwhite territorial and economic relations consistently structures urban real estate markets, driving the ongoing displacement and dispossession of communities of color. Viewing the frontier as a structuring logic of racial capitalism (rather than a symbolic motif or metaphorical condition) helps to explain why these racial patterns of dispossession can be observed as a hallmark outcome of processes of gentrification in settler countries like the United States. Meanwhile, through our case study we show how grassroots actors already are using the language of settler colonialism as a framework for naming and analyzing those outcomes just described, indicating a need for greater theoretical work that engages with these grassroots framings and narratives. [ABSTRACT FROM AUTHOR]

In the United States and beyond the challenges of global climate change are increasingly being governed via the militarization of nation-state borders rather than, or in addition to, the mitigation of carbon emissions and collective strategies for climate adaptation. In this article we apply the concept of "geopopulationism," introduced by Bhatia et al. (this issue), to think through the zero-sum Manichaean logics of traditional geopolitical calculation and the ways these become applied to climate governance via the securitization of climate change-related migration. In order to disrupt this securitization of climate policy, we draw on the insights of feminist geopolitics and what Koopman calls "alter-geopolitics" to consider how contemporary grassroots movements like the Sanctuary movement and #BlackLivesMatter have made connections between political, economic and environmental vulnerabilities while developing relationships of solidarity and care that broaden, disseminate, distribute and regenerate security as an expansive and inclusive project. We conclude by considering ways that scholars can continue to ally ourselves with and contribute to these grassroots efforts. [ABSTRACT FROM AUTHOR]

In North America, and globally, the topics of immigration and immigration policy have become among the most divisive fault lines of political struggle and debate. In this paper, we reflect upon the State of Arizona's embrace of the "Attrition Through Enforcement" (ATE) doctrine as exemplary of contemporary U.S. anti-immigrant policies that target the social reproduction of non-citizens. Reflecting on ATE and movements against it, we argue for the inadequacy of scholarly and activist approaches that would normatively deploy frameworks of "citizenship" or demands for "no borders" to articulate the stakes and composition of contemporary immigration struggles. Borrowing from political scientist Joel Olson and his concept of "democratic Manichaeism," we argue instead the imperative to radically confront and unsettle the normative divisions between citizen and non-citizen that antiimmigrant actors and policies would police. Through two case studies in Tucson, Arizona, we examine the possibilities and challenges related to mobilizing such a Manichaean framework through the quotidian spaces of everyday life. We conclude by proposing "community composition" as both a political agenda and a methodological framework through which to attend to everyday geographies of belonging and exclusion while confronting the normative political categories that structure the nation-state and justify its violence. [ABSTRACT FROM AUTHOR]

The article highlights the We Reject Racism campaign against Arizona's SB 1070, which is also known as the Support Our Law Enforcement and Safe Neighborhoods Act is designed to regulate immigration in the state. The aim of the campaign was to educate the people about the popular narratives that supported the passage of laws like SB 1070. The main focus of the campaign centered on three themes, which are visual resistance, marking an anti-racist city and normalizing non-compliance with racist.