How did us military involvement between 1865 and 1933 shape the caribbean?

For most of the nineteenth century, the United States viewed the newly independent Latin American countries as struggling underdeveloped nations. Projecting their own biases, North Americans believed that this economic underdevelopment was a result of what they considered to be racial inferiority, enervating tropical climate, and a restrictive Spanish cultural heritage in Latin America.

Well since there aren't any choices i dont know if this is right but nationalism played an important role in the unification of both italy and germany i do believe