Chapter 7 focuses on the impact of international cooperation in cyberspace. By design, the Internet is global, and engineering ignores sovereignty concerns such as citizenship, borders, and domestic law. However, running against domestic regulation and the consequent possible internet fragmentation are several international efforts to cooperate in cyberspace through various stakeholder and multilateral models that include the United Nations, European Union, and the North Atlantic Treaty Organization (NATO). The latter, composed of 30 countries in North America and Europe, issued a communique in 2021 pushing back against authoritarian uses of the Internet calling for a free, open, and peaceful cyberspace. In 2022, 60 countries, including many NATO members, adopted ”A Declaration for the Future of the Internet.” Applying human rights in cyberspace was among the principles adopted. To explore these issues, the chapter reviews forms of internet governance enabling technical, legal, and policy cooperation across boundaries.