Isthmus of Perekop
During World War II, the combined forces of German and Romanian troops under the command of Erich von Manstein entered Crimea through the Isthmus of Perekop. The battle of the isthmus lasted five days from 24 September 1941 before the isthmus was secured by the Axis forces. On October 27 the Axis forces advanced further into Crimea, leading to the Battle of Sevastopol. On 9 May 1944, the Red Army regained control of Crimea (The Crimean Offensive (8 April – 12 May 1944)).