Proposed United States annexation of Santo Domingo

The proposed annexation of Santo Domingo was an attempted treaty during the later Reconstruction era, with precedents under earlier administrations, but re-initiated by United States President Ulysses S. Grant in 1869, to annex Santo Domingo (as the Dominican Republic was commonly known) as a United States territory, with the promise of eventual statehood. President Grant feared some European power would take the island country in violation of the Monroe Doctrine.

Source: Wikipedia — Proposed United States annexation of Santo Domingo (CC BY-SA 4.0)