KnowraUnrestricted submarine warfareLinked fromLinked fromThe 13 pages that link to Unrestricted submarine warfare, each with the reason it gives.All 13Broader topic 1Related 8Narrower topic 1Compared with 3Imperial German NavyCompared with: It became a more consequential German maritime strategy than battleship combat, but carried severe diplomatic costs.Theobald von Bethmann HollwegCompared with: Bethmann Hollweg warned that this policy risked bringing the United States into the war, but accepted its resumption in 1917.Lothar von Arnauld de la PerièreCompared with: This later German policy differed sharply from the warning-and-evacuation practices often associated with his patrols.