At the end of World War II, interest in integrating the Central American governments began. On October 14, 1951 (33 years after the CACJ was dissolved) the governments of Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua signed a treaty creating the Organization of Central American States (Organización de Estados Centroamericanos, or ODECA) to promote regional cooperation and unity. The following year (December 12, 1952), ODECA's charter was amended to create a new Central American Court of Justice (Corte Centroamericana de Justicia, or CCJ) without the time limit of its previous incarnation.
The Charter of San Salvador was ratified by all Central American governments, and on August 18, 1955 their foreign ministers attended its first meeting in Antigua Guatemala. The Declaration of Antigua Guatemala authorized subordinate organizations of ODECA to facilitate economic cooperation, better sanitation and progress in the "integral union" of the Central American nations.[3]
The Central American Common Market, the Central American Bank for Economic Integration (BCIE) and the Secretariat for Central American Economic Integration (SIECA) were established by the five Central American nations on December 13, 1960 at a conference in Managua.[4] All nations ratified the membership treaties the following year. Costa Rica joined the CACM in 1963, but Panama has not yet joined. The organization froze during the 1969 war between Honduras and El Salvador; in 1973 ODECA was suspended, and progress toward regional integration ground to a halt.