Northern Taurida Operation As relations once again started to soften between the Bolsheviks and Makhnovists, the insurgents were assigned their own
theater, which included their home territory around
Synelnykove,
Oleksandrivsk,
Huliaipole and
Berdiansk. As part of the
4th Army, the 10,000-strong insurgent detachment forced the Whites into a retreat on 11 October. The Makhnovist advance was aided by a number of insurgents that were caught behind the White lines, some of whom had briefly formed an alliance with Wrangel during the Red Army offensive, who informed the Insurgent Army on the White positions. After days of fighting, the insurgents routed the White "Drozdov Division" and recaptured Huliaipole, taking 4,000 prisoners of war in the process. During this time, the
2nd Cavalry Army broke through the White lines at the Kakhivka bridgehead, opening space for an insurgent offensive towards
Melitopol, in hopes of cutting off the White route of retreat. with other members of his detachment, which would play a leading role in the
battle for Crimea. The Makhnovists requested three days of rest in Huliaipole but were ordered to continue their offensive, under threat of their alliance with the Red Army being nullified. An insurgent expeditionary force, commanded by Semen Karetnyk with Petro Havrylenko as chief of staff, immediately set out from Huliaipole and captured Oleksandrivsk on 23 October. Frunze ordered them to continued advancing, expecting them to reach
isthmus of Perekop before the end of the month. The Red forces themselves were advancing relatively slowly and failed to complete their planned encirclement of Wrangel's army. On 28 October, the Red Army finally reached the front against the Whites, with the 6th Army and 1st and 2nd Cavalry Armies taking the left flank along the Dnieper, while the 4th and 13th Armies took the right flank from Oleksandrivsk to the Azov Sea. The following day, Karetnyk's detachment went on to capture
Tokmak, where they took 200 prisoners and seized 4 artillery cannons and machine-guns. They then continued on through Melitopol all the way to the
Syvash, forcing the Whites to retreat from mainland Ukraine to Crimea. The decisive end of the
Northern Taurida Operation saw the Whites suffer heavy casualties and lose a substantial amount of their equipment, reducing them to a fraction of their former strength. Within only two weeks, Karetnyk's insurgent detachment had beaten back the Whites, almost completely independently of the supporting Red Army infantry and entirely without the anticipation of the Bolshevik command. Karetnyk's force had been composed of only 4,000 infantry, 1,000 cavalry, 250 machine guns and 12 artillery cannons. In contrast, the Red Army had 188,771 soldiers at the front and the Whites had 44,000. Crucially, it was the Makhnovist capture of Melitopol, regarded as the White stronghold in the region, that had turned the tide against the White movement and forced them back to Crimea.
Perekop–Chonhar Operation . On 3 November, Frunze moved his headquarters to Melitopol, where he began to plan the
final attack against the Whites in Crimea. The insurgents once again requested a short period of
rest and recuperation, but this too was denied by Mikhail Frunze, who again threatened nullification of the alliance. In order to keep the insurgents isolated from sympathetic elements of the Red Army, Karetnyk's detachment was transferred from the
13th Army to the
4th Army, before being transferred again to the
6th Army, then the
2nd Cavalry Army and then back to the 4th Army, all within the space of two weeks. Up against heavy fortifications and with their Azov flotilla indisposed, the Red command concluded it would be necessary to force the Syvash, between
Perekop and
Chonhar, which had been made fordable by unusually strong winds. On 5 November, while within the 6th Army, Karetnyk's detachment received orders to attack the White positions at Perekop, in what
Sergey Kamenev reported to be a
suicide mission.
August Kork reported that Karetnyk quickly turned back from the offensive, as his units had not been able to ford the Syvash. With this in mind, it was decided that Karetnyk's detachment, along with the
15th and
52nd Rifle Divisions, would begin their assault on the night of 7 November. The 15th and 52nd Divisions made the crossing and captured the north of the
Lithuanian Peninsula, but a change in wind prevented Karetnyk's detachment from crossing. When the 7th and 9th Cavalry Divisions were able to make the crossing at 03:00, Karetnyk's detachment was ordered by Frunze to follow them at 05:00. Under heavy machine-gun fire, Karetnyk led the assault against
Mikhail Fostikov's
Kuban Cossacks, pushing them back over the Syvash.
Alexei Marchenko led the insurgent cavalry, covered from behind by
Foma Kozhyn's machine gun regiment, which suffered heavy casualties during the crossing. At this time, Karetnyk's detachment consisted of only 1,000 infantry, 700 cavalry, 191 machine guns and 6 artillery cannons, while Perekop was manned by thousands of White infantry, with 750 machine guns, 180 artillery cannons, 48 tanks and a number of armored trains. Despite the losses, Karetnyk's attack had allowed the Soviet forces to establish a bridgehead at the Lithuanian Peninsula, which provided them with a decisive offensive position. On 9 November, the White cavalry led by attacked the left flank of the 15th Division, briefly forcing them back. Karetnyk's detachment responded with their own cavalry charge, which fanned out just before clashing with the Whites, leaving them open to machine-gun fire from the insurgents'
tachanki. This forced the Kuban Cossacks to retreat and bought the 15th and 52nd Divisions time to strengthen their lines, allowing the safe passage of reinforcements from the
51st Rifle Division and
Nikolai Krylenko's cavalry brigade. On 11 November, the Soviet forces were finally able to break through the White defensive line at Yushun, forcing Wrangel to order the
evacuation of the Crimea. In their final defeat on the Southern Front, 100,000 White soldiers and 50,000 civilians fled aboard 126 ships, leaving only a few
White holdouts in Siberia remaining. Over the following days, the Soviet forces advanced down the railway lines, with the insurgents capturing
Simferopol on 13 November. As
Sevastopol was finally captured on 15 November, the insurgents were assigned quarters at and . The White forces that had remained in Crimea, taken in by Frunze's promise of amnesty, were massacred by the Cheka, at the order of
Bela Kun. Estimates of the prisoners of war executed during this period range from 13,000 to over 50,000. ==Aftermath==