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Initially, the "Priboy" and "Lavina" helicopter carrier designs were first revealed in June 2015 during the "ARMY-2015" military-technical forum, as a replacement for the two undelivered ''Mistral''-class vessels ordered by Russia in 2011 under a $1.3 billion contract.{{Citation needed|date=November 2020}} However, due to the [[International sanctions during the Russo-Ukrainian War|international sanctions against Russia]], the French refused to proceed with the delivery and the deal was suspended in 2015. France subsequently returned to Russia the deposit paid for the construction of the two vessels.<ref>{{cite web |url=https://www.bbc.com/news/world-europe-33798102 |title=Mistral warships: Russia and France agree compensation deal |website=[[BBC News]] |date=5 August 2015 |access-date=13 September 2019}}</ref> Both vessels were later sold to the [[Egyptian Navy]].
On 25 May 2017, Russian Deputy Defence Minister [[Yury Borisov]] stated that the construction cycle of new Russian helicopter carrier would last at least four years and the first such ship willwas project to be completed by 2022.<ref>{{cite web |url=http://tass.com/defense/947622 |title=Russia to build first helicopter carrier by 2022 |website=[[TASS]] |date=25 May 2017 |access-date=17 March 2019 |archive-url=https://web.archive.org/web/20190423151829/http://tass.com/defense/947622 |archive-date=23 April 2019 |url-status=live}}</ref><ref>{{cite web |url=http://www.navyrecognition.com/index.php/news/defence-news/2017/may-2017-navy-naval-forces-defense-industry-technology-maritime-security-global-news/5235-russian-mod-first-lhd-amphibious-assault-ship-to-be-built-in-russia-by-2022.html |title=Russian MoD: First LHD Amphibious Assault Ship to be Built in Russia by 2022 |website=Navyrecognition.com |date=29 May 2017 |access-date=17 March 2019 |archive-url=https://web.archive.org/web/20190309034946/http://navyrecognition.com/index.php/news/defence-news/2017/may-2017-navy-naval-forces-defense-industry-technology-maritime-security-global-news/5235-russian-mod-first-lhd-amphibious-assault-ship-to-be-built-in-russia-by-2022.html |archive-date=9 March 2019 |url-status=live}}</ref>
In June 2017, Vice President of the [[United Shipbuilding Corporation]] Igor Ponomarev said the "Priboy" helicopter carriers were implemented in Russia's New State Armament Programme for 2018–2025 and that the construction of the ships could be carried either by [[Severnaya Verf]], [[Baltic Shipyard]] or [[Sevmash]].<ref name="Priboy class"/>
In July 2017, a member of the Russia's [[State Duma]] Dmitry Belik announced, the lead ship of the class willwould be named ''Sevastopol'', after the city of [[Sevastopol]]. The cost for the ship is to be about RUB40 billion ($675 million),<ref name=Price>{{cite web |url=https://www.navyrecognition.com/index.php/news/defence-news/2017/july-2017-navy-naval-forces-defense-industry-technology-maritime-security-global-news/5377-russia-s-first-priboy-lhd-amphibious-assault-ship-to-cost-675-millions.html |title=Russia's First Priboy LHD Amphibious Assault Ship to Cost $675 Millions |website=NavyRecognition.com |date=10 July 2017 |access-date=17 March 2019 |archive-url=https://web.archive.org/web/20181010214618/http://www.navyrecognition.com/index.php/news/defence-news/2017/july-2017-navy-naval-forces-defense-industry-technology-maritime-security-global-news/5377-russia-s-first-priboy-lhd-amphibious-assault-ship-to-cost-675-millions.html |archive-date=10 October 2018 |url-status=live}}</ref> and its construction would begin after approval of the New State Armament Programme for 2018-2025.<ref>{{cite web |url=https://tass.ru/armiya-i-opk/4575972 |title=Строительство российских вертолетоносцев начнут после утверждения госпрограммы вооружений |trans-title=The construction of Russian helicopter carriers will begin after the approval of the state armaments program |language=ru |website=[[TASS]] |date=20 September 2017 |access-date=17 March 2019 |archive-url=https://web.archive.org/web/20180722175629/http://tass.ru/armiya-i-opk/4575972 |archive-date=22 July 2018 |url-status=live}}</ref>
On 11 September 2019, it was reported that the first and second vessel of the class willwould be laid down in May 2020 at [[Zalyv Shipbuilding yard|Zaliv Shipyard]], [[Crimea]].<ref name="TASS September 2019">{{cite web |url=https://tass.ru/armiya-i-opk/6872382 |title=Источники: первые два российских вертолетоносца заложат на верфи в Крыму весной 2020 года |trans-title=Source: The first two Russian helicopter carriers will be laid at a shipyard in Crimea in the spring of 2020 |language=ru |website=[[TASS]] |date=11 September 2019 |access-date=12 September 2019}}</ref>
On 22 May 2020, according to a [[TASS]] news agency report, the Russian Defence Ministry had signed a RUB100 billion deal for the construction of two universal landing ships, thewith construction of which willto take place at the Zaliv Shipyard in Crimea.<ref name="contract signed">{{cite web |url=https://tass.ru/armiya-i-opk/8535627 |title=Источник: Минобороны подписало контракт на два вертолетоносца |trans-title=Source: the Ministry of Defense signed a contract for two helicopter carriers |language=ru |website=[[TASS]] |date=22 May 2020 |access-date=9 June 2020}}</ref><ref>{{cite web |url=https://www.navyrecognition.com/index.php/news/defence-news/2020/may-2020/8485-russian-mod-signs-contract-for-two-project-23900-helicopter-carriers-lhd.html |title=Russian MoD Signs Contract for Two Project 23900 Helicopter Carriers LHD |website=NavyRecognition.com |date=27 May 2020 |access-date=9 June 2020}}</ref> The{{asof|2020}}, the two vessels shouldhad been projected to be delivered to the Russian Navy in 2026 and 2027, respectively.<ref name="TASSapril2020">{{cite web |url=https://tass.ru/armiya-i-opk/8207635 |title=Источник: Россия потратит 100 млрд рублей на постройку первых двух вертолетоносцев |trans-title=Source: Russia will spend 100 billion rubles on the construction of the first two helicopter carriers |language=ru |website=TASS |date=10 April 2020 |access-date=9 June 2020}}</ref>
On 20 July 2020, during the [[Keelkeel laying|laying down]] ceremony, the names of the first two ships were officially revealed. The ships were named ''Ivan Rogov'' and ''Mitrofan Moskalenko'', the same as two already decommissioned {{sclass|Ivan Rogov|landing ship|0}} vessels.<ref name="keel laid">{{cite web |url=https://tass.ru/armiya-i-opk/9006521 |title=В России впервые заложили два универсальных десантных корабля-вертолетоносца |trans-title=Two universal amphibious assault helicopter carriers were laid down for the first time in Russia |website=TASS |language=ru |date=20 July 2020 |access-date=20 July 2020}}</ref>
On 28 February 2021, it was reported that the shipbuilders had begun to build the hulls of the two future amphibious assault ships. It was also reported that construction was going on schedule, that the displacement of each of them willwould be 40,000 tons, and that the ships willwould behave ablethe tocapacity carryof up to four [[Sukhoi S-70 Okhotnik-B]] drones, to both perform strike missions and to perform target designation for the hypersonic [[3M22 Zircon|Zircon]] missiles launched from other ships.<ref name="tass20212">{{Cite web |url=https://tass.ru/armiya-i-opk/10798699 |title=Источник: на заводе "Залив" начали формировать корпуса будущих кораблей-вертолетоносцев |trans-title=Source: The Zaliv plant began to form the hulls of future helicopter carriers |language=ru |date=28 February 2021 |website=ТАSS}}</ref>{{update after}}<!-- what happened in 2022-2024, following the [[Russian invasion of Ukraine]] and hostilities on Crimea and in Sevastapol? -->
On 11 October 2021, it was reported that ''Mitrofan Moskalenko'' willwould become the flagship of the Black Sea Fleet. Infrastructure facilities initially intended for the second ''Mistral''-class vessel are being prepared in Sevastopol, scheduled to be ready by the time the ship is commissioned.<ref>{{Cite web |url=https://www.navalnews.com/naval-news/2021/10/russian-navy-project-23900-lhd-to-become-black-sea-fleets-flagship/|title=Russian Navy Project 23900 LHD To Become Black Sea Fleet's Flagship|date=11 October 2021|access-date=6 January 2022|website=navalnews.com}}</ref>
==Design==
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