KnowraU-boatLinked fromLinked fromThe 4 pages that link to U-boat, each with the reason it gives.All 4Broader topic 2Related 1Narrower topic 1Battle of the AtlanticBroader topic: U-boats were Germany’s principal weapons for sinking Allied shipping.Depth chargeRelated: U-boats were the principal targets of depth-charge attacks in both world wars.Karl DönitzBroader topic: Dönitz built his wartime command around submarine operations against Allied shipping.Lothar von Arnauld de la PerièreNarrower topic: The U-boat was the vessel type through which Arnauld de la Perière made his record.