This article begins with an analysis of the concepts of “democratic solidarity” (Brunkhorst) and of “citizen solidarity” (Habermas). By analyzing two discourses related to the regional integration of Latin America we then reconstruct the type of solidarity presented in each and contrast this with the citizen solidarity type in order to prove that citizen solidarity is the most promising to be used normatively in political discourses if one takes the common colonial past of the region’s countries as a starting point. Finally, we restate the basic character of the concept of citizen solidarity in the sense that it encompasses its own aspects and those represented by the concept of democratic solidarity.