This chapter asks how we may analyze Indigenous water defense movements and how relationships among land, water, and body may help us theorize Indigenous internationalism. Focusing on the Secwepemc Tiny House Warriors in British Columbia (BC), Canada, and the United Front of Nahua Communities in Puebla, Mexico, this chapter first explores how the dynamics of capital accumulation and territorial reorganization are situated within imperialist formations. Second, using a body-land conceptual framework, it analyzes how Indigenous political practices bring the human and the more-than-human worlds as well as different struggles together. We argue that understanding Indigenous struggles to protect land and water requires paying attention to the interdependent relations that constitute Indigenous life and to how relationality manifests politically. We show that Indigenous internationalism not only involves relationships among distinctive Indigenous nations but also between humans and different elements and species that constitute Indigenous territories.