territorial disputes with Colombia over the Archipelago de San Andres y Providencia and Quita Sueno Bank; with respect to the maritime boundary question in the Golfo de Fonseca, the ICJ referred to the line determined by the 1900 Honduras-Nicaragua Mixed Boundary Commission and advised that some tripartite resolution among El Salvador, Honduras, and Nicaragua likely would be required; maritime boundary dispute with Honduras in the Caribbean Sea is before the ICJ; legal dispute over navigational rights of San Juan River on border with Costa Rica