Task: Text Categorization
Input (English): Factors leading to the outbreak of this war included the long-standing border dispute between the countries involved, the imbalance in trade opportunities created by the Central American Common Market, and the involuntary repatriation program instituted by the Honduran government. On July 14, 1969, El Salvador opened hostilities against Honduras, and although a cease-fire was declared four days later, a peace treaty was not concluded until 1980. FTP, name this war which gained its name from three contentious World Cup matches played shortly before the war.
Output (English): History