During World War II, Biuku Gasa and Eroni Kumana were tasked with patrolling the waters of the Solomon Sea near Gizo with Australian coastwatcher Sub-Lieutenant Arthur Reginald Evans, who manned a secret observation post at the top of Kolombangara island's Mount Veve volcano.
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Gasa and Kumana were interviewed by National Geographic in 2002, and can be seen on the DVD of the television special.