sentences:  The congress’ participants included fifteen incumbent-governmental parties that, together with dozens of other Latin American political parties, unanimously approved a proclamation calling for the United States to immediately respect Puerto Rico’s right to independence and unabridged sovereignty.This proclamation quickly became known as the Panama Proclamation in international circles.Also present to support Puerto Rico’s independence were Raúl Alfonsín, ex-President of Argentina; Tomás Borge of Nicaragua; and, Ricardo Alarcón of Cuba.