looks like the destroyer thought that the cargo ship is overtaking, and thus the cargo ship is responsible to yield and later - when it became dangerously close - to take evasive action. While the cargo ship thought that him/her being on the starboard side of the destroyer makes the destroyer responsible to yield/to take the action. Or may be the cargo ship was completely asleep. Anyway, the destroyer waiting for the cargo ship to take that action... that bow coming closer and closer to the destroyer's bridge ... deer in the headlights comes to mind. A junior officer mistake of insisting till the very end on your right of way against a 4x times heavier civilian bathtub of a ship.