What action should a vessel take when it sees a green and white light combination?

When a vessel sees a green and white light combination, it indicates that it is approaching a sailing vessel that is under power. In the context of maritime navigation, the green light typically represents the starboard side of a vessel, while the white light signifies that the vessel is a type of sailing craft. According to the navigation rules, the powered vessel must give way to the sailing vessel as it is the one with limited maneuverability. This action ensures safety and compliance with the "give way" rules established to prevent collisions. Understanding these signals and their meanings is crucial for maintaining safe navigation on the waters.