This chapter talks about how the ethnic Chinese throughout the United States greeted the news of the People's Republic of China's entry into the Korean War with immense trepidation. Almost overnight, the prevailing images of Chinese in the American public eye had metamorphosed from friendly Pacific allies to formidable, threatening foes. Chinatown's Korean War Red Scare dramatized the ways in which the Cold War structured the reconfiguration of Chinese American citizenship in the post-Exclusion era. The ascendance of anti-Communism as the defining paradigm of US foreign policy after World War II introduced new imperatives to clarify Chinese America's social and political standing. To address these issues, both parties looked to the identification of Chinese in the United States as Overseas Chinese—that is, members of a global Chinese diaspora with ties to each other and China.