This article argues that powerful Western militaries are central architects of the necropolitics underpinning contemporary greenand digital transitions. As climate change is increasingly framed as a security threat, NATO, the United States and the EuropeanUnion pursue climate-resilient defence infrastructures whose material foundations depend on strategic minerals extracted underconditions of armed conflict, displacement, sexual violence and premature death. We conceptualize a colonial necropoliticalwar-climate-extraction cycle in which colonial histories of violence, contemporary resource wars, climate securitization andcritical-mineral extraction become mutually reinforcing. Focusing on eastern Congo, we examine conflict-mineral laundering,the US-sponsored peace-for-extraction accord, EU–Rwanda strategic partnerships and the Lobito Corridor. We show how theseinitiatives transform conflict minerals in Congo into secure resources for green, digital and military transitions while obscuringthe necropolitical conditions of their production. Climate-resilient defence thus reproduces a global division of protection inwhich some populations are secured while others are rendered expendable.