What event triggered the entry of the united states into the war

What was eleanor roosevelt's most significant achievement?

Plz where was the inca civilization located? a. in and around the andes mountains of south america. b. central america in southern mexico. c. the caribbean islands. d. the central valley of mexico.

During the 1980s, profit from the sale of weapons to iran was used to stop the communists in costa rica. start a proxy war in el salvador. support the contras in nicaragua. stage a coup d’état in guatemala.