Belize - Guatemala Relations: Belize government site gives background of issue, structure of National Advisory Commission, and official documents and speeches.
Belize - Guatemala Territorial Differendum: Organization of American States. Includes documents, press releases, and texts of speeches. Most available in English and Spanish.
The Cost of Conflict: Anglo-Belize/Guatemala Territorial Issue: Master's thesis by Janine Sylvestre examines historical relations between the two nations, as well as their current cultures and forms of governments, and suggests courses for the future.