Environmental security is moving from the margins of defense doctrine to its center. Illegal fishing, resource conflict, critical mineral supply lines, and climate-driven migration are now explicitly within the mandate of security agencies and the defense industrial base. This fireside with the leadership of SMR Defense and Safire, moderated by OSP, examines the convergence of defense capability and nature protection — where the budgets are flowing, which technologies are dual-use by design, and what it means for the nature agenda when its most powerful allies increasingly wear uniforms.