Historians of US foreign relations have much to gain by incorporating some of the methodological interventions made by scholars of race and Ethnic Studies. Drawing on research on US–Caribbean and US–Central American relations, this chapter tackles the following questions: What does it mean to study race as a central component, and not just a byproduct of US foreign relations? How does race appear in and outside of government archives? And what are some assumptions that require reassessment to ensure that US foreign relations scholars are not using –race– as a mere descriptor of –other–? A core component of the chapter is its combined use of field-specific observations and personal reflections amassed over the course of twenty years of research and writing. It does not propose one unified meaning of “race,” nor one specific method for examining race as an idea and practice. Instead, it maps out how the fields of African Diaspora Studies and Critical Ethnic Studies have expanded our understandings of racialization and racial formation, provides examples of effective approaches that draw from specific events and published works, outlines questions to ask before, during, and after conducting research, and invites researchers to recognize how archives function as racialized spaces.