The Legion was responsible for two failed invasions of the Dominican Republic, in 1947 and 1949, as well as successfully toppling the Costa Rican government in the Costa Rican Civil War in 1948.
Legiun tersebut bertanggung jawab atas dua invasi gagal terhadap Republik Dominika, pada 1947 dan 1949, serta sukses menggulingkan pemerintahan Kosta Rika dalam Perang Saudara Kosta Rika pada 1948.