Nearly two decades after the Sapodilla Cayes territorial dispute first entered international legal proceedings, the long-simmering sovereignty conflict has advanced to a new critical phase at the International Court of Justice (ICJ), with Belize formally placing its full legal defense on the court’s official record this week.
On September 21, 2026, the Government of Belize submitted a two-volume set of written observations directly responding to Guatemala’s competing territorial claim over the southern Caribbean island archipelago. The first of the two documents lays out Belize’s formal legal arguments for its sovereignty over the Sapodilla Cayes, while the second volume compiles hundreds of pages of supporting evidence and archival documentation to underpin the country’s position. The submission was completed well within the extended deadline the ICJ set in an April 16, 2026 order, and followed all procedural requirements outlined in Article 85, Paragraph 1 of the ICJ’s Rules of Court.
At the heart of the case is a decades-old unresolved question: which sovereign nation holds legal right to the Sapodilla Cayes, a string of remote unincorporated islands that sit along a strategically and commercially important maritime boundary in the western Caribbean. The proceedings were originally launched by Belize in a case against Honduras, but Guatemala was later granted intervenor status by the court, bringing all three Central American nations directly into the dispute with competing legal claims to the territory, which Belize currently administers as part of its southern maritime territory.
Alongside Belize’s submission, Honduras also filed its own written observations responding to Guatemala’s claim on the same day, meaning all parties’ formal written positions are now before the ICJ for judicial review. Belize was represented at the time of filing by Mariana Verde, Chief Operations Officer of the Office of Belize’s Agent to the International Court of Justice, who was accompanied by Catherine Drummond, a senior member of Belize’s legal team for the case.
While the government of Belize has opted not to release the full contents of its two-volume submission to the public to preserve procedural strategy, officials have confirmed that the filing marks a key milestone in the country’s multiyear effort to defend its territorial claims before the United Nations’ highest judicial body. In the coming months, ICJ justices will review all written arguments and evidence submitted by Belize, Guatemala and Honduras before scheduling oral arguments and moving toward a final binding ruling on the sovereignty of the archipelago. Local journalist Isani Cayetano contributed reporting on the latest developments for Belize’s News Five outlet.