KnowraIsthmus of PerekopLinked fromLinked fromThe 2 pages that link to Isthmus of Perekop, each with the reason it gives.All 2Broader topic 1Related 1Crimean offensiveBroader topic: The Soviet breakthrough here opened the northern route into Crimea.Pyotr WrangelRelated: Its fortifications formed the principal land barrier protecting Wrangel’s Crimean base.