This essay examines why academic freedom has become a defining issue in the geostrategic competition between liberal democracies and their authoritarian challengers. The growing strategic rivalry between the United States and China is threatening to disrupt, even destroy, academic interchange between liberal and authoritarian societies. At the same time, populist right-wing leaders in Western democracies are attacking university autonomy, as part of a strategy of authoritarian consolidation. Hungary's prime minister Viktor Orbán has pursued an authoritarian takeover of his country's higher-education system while seeking new partnerships with Chinese institutions. Through this essay, I seek to explain why academic freedom faces unprecedented challenges, both within liberal democracies and from authoritarian competitors.