ECA: The American International School, Escuela Campo Alegre is a private non-profit English language international school located in Caracas, Venezuela. Our program is designed primarily to serve the needs of the children, ages 3-18, from international corporations and diplomatic agencies temporarily residing in Venezuela.ECA: The American International School, Escuela Campo Alegre is a private non-profit English language international school located in Caracas, Venezuela. Our program is designed primarily to serve the needs of the children, ages 3-18, from international corporations and diplomatic agencies temporarily residing in Venezuela.