The document discusses the international security environment and proposes a grand strategy for a new US administration. It identifies key threats such as weapons proliferation, terrorism, transnational crime, and economic and geopolitical challenges. It argues that while no threats currently jeopardize US supremacy, failing to address issues could undermine it long-term. The document proposes adopting a cooperative security strategy to deal flexibly with state and non-state actors in an interconnected world. This strategy would entail sharing burdens with partners through investment rather than military intervention alone. Transitioning to this strategy would require compromise but pay dividends over the long-run.