Anti-globalist leaders form a distinct set of challengers to the global system because they share a common motivation: the desire to regain national sovereignty and reduce the power of international institutions. This chapter considers three different forms of anti-globalist resistance: (1) attempts to dismantle status quo regimes through unilateral action that challenges existing rules; (2) joining coalitions across states to transform existing multilateral institutions and reduce rules or obligations; (3) building new institutions or seeking alternative venues that favor state sovereignty over interconnectedness. Each strategy could transform the content of international rules, but with different implications for how we understand the nature of institutional authority. If international authority has moved beyond state consent and international institutions themselves now constitute a legitimate source of authority, anti-globalist leaders will find it difficult to escape the confines of institutional commitments through unilateral action. For strategic anti-globalists, then, the optimal way to undermine cooperation may be to work within the system itself, shaking the foundations of the post-1945 international order.