The United States and Cuba made history in late 2014 by announcing the resumption of diplomatic relations. With the media coverage and social media content related to the announcements as a stimulus, this pre-post-study noted increases in U.S. adults’ levels of perceived knowledge, salience of attributes, as well as attitudes toward Cuba after the joint proclamations. Results suggest that media coverage and social media content played major roles in influencing both public knowledge of and attitudes toward Cuba as a country. These first- and second-level agenda-setting effects are positioned within the Model of Country Concept as an example of soft power. The power of international media to affect both cognitive and affective evaluations among the citizens of one country about the government and citizenry of another is discussed. This article is published as part of a collection on soft power.