The Vietnamese and Indonesian coast guard ships coordinate to extinguish the fire with water cannons during an exercise in the waters off the southern province of Ba Ria-Vung Tau. (Photo: canhsatbien.vn)

In the hypothetical scenario, the Vietnamese and Indonesian coast guard ships received an SOS signal from a vessel on fire while on a joint patrol. They quickly identified the coordinates, contacted each other via a common frequency system, and approached the distressed ship. Then they coordinated to extinguish the fire with water cannons, and brought the victims aboard for first aid.