This a "How To" to detect targets at sea. Best used with more than one fleet. I try and always look for distortions in sea hexes before moving a naval unit (click on unit, movement range will appear), in this SS my armored cruiser spots a distortion (possible enemy fleet or enemy convoy), but is not exactly sure which hex this fleet is in, for that distortion maybe a shadow of a fleet that is actually closer to the armored cruiser than it might seem? One thing for sure: The target is in a red dot sea hex, which will lower my fleet's efficiency at the end of my turn, so I want to be somewhat accurate when I move to reconnoiter, then attack or not (could be a dreadnaught, that would be bad for my cruiser). How would I know for sure? As you can see I have other fleets nearby, all set up as a ship detection screen., so I am going to click on them to see if they can help? As you will see in the following 3 SS.