In March and April 2021, prior to the 2022 Russian invasion of Ukraine, the Russian Armed Forces began massing thousands of personnel and military equipment near Russia's border with Ukraine and in Crimea, representing the largest mobilisation since the illegal annexation of Crimea in 2014.[37][38] This precipitated an international crisis due to concerns over a potential invasion. Satellite imagery showed movements of armour, missiles, and heavy weaponry towards the border.[39][40] The troops were partially withdrawn by June 2021,[41] though the infrastructure was left in place. A second build-up began in October 2021, this time with more soldiers and with deployments on new fronts; by December over 100,000 Russian troops were massed around Ukraine on three sides, including Belarus from the north and Crimea from the south.[42] Despite the Russian military build-ups, Russian officials from November 2021 to 20 February 2022 repeatedly denied that Russia had plans to invade Ukraine.[43][44]
The crisis was related to the War in Donbas, itself part of the Russo-Ukrainian War, ongoing since February 2014. Intercepted phone conversations of Sergey Glazyev, a top advisor to Russian President Vladimir Putin, disclosed the specifics of the project Novorossiya to take over not just Crimea, but also the Donbas, Kharkiv, Odesa, and Zaporizhzhia regions of Ukraine, which Russia apparently aimed to annex following Crimea.[45] The plan involved fomenting widespread unrest using pro-Russian agents on the ground, and then orchestrating uprisings that would announce rigged referendums about joining Russia, similar to the one that took place in Crimea on 16 March 2014. In December 2021, Russia advanced two draft treaties that contained requests for what it referred to as "security guarantees", including a legally binding promise that Ukraine would not join the North Atlantic Treaty Organization (NATO) and a reduction in NATO troops and materiel stationed in Eastern Europe, threatening unspecified military response if those demands were not met in full. NATO rejected these requests, and the United States warned Russia of "swift and severe" economic sanctions should it further invade Ukraine.[46] The crisis was described by many commentators as one of the most intense in Europe since the Cold War.[47][48][49]
On 21 February 2022, Russia officially recognised the two breakaway regions in eastern Ukraine, the Donetsk People's Republic and the Luhansk People's Republic, as independent states,[50] and deployed troops to Donbas, in a move interpreted as Russia's effective withdrawal from the Minsk Protocol.[51][52] The breakaway republics were recognised in the boundaries of their respective Ukrainian oblasts, although much of this territory was still held by Ukrainian government forces.[53] On 22 February, Putin declared the Minsk agreements as invalid[54] and the Federation Council unanimously authorised him to use military force in the territories.[55] On the morning of 24 February, Putin announced that Russia was initiating a "special military operation" in the Donbas, and launched a full-scale invasion into Ukraine.[56][57]
^Захарова: РФ и Беларусь вынуждены реагировать на наращивание сил НАТО у общих границ [Zakharova: Russia and Belarus are forced to respond to the build-up of NATO forces near their common border]. Rossiyskaya Gazeta (in Russian). 20 January 2022. Archived from the original on 20 January 2022. Retrieved 20 January 2022. На брифинге Захарова подчеркнула, что на происходящее Москва и Минск вынуждены адекватно реагировать. В частности, путем совместного патрулирования воздушного пространства, регулярных совместных тренировок, а также учений. Так, уже в феврале пройдет совместное учение "Союзная решимость-2022". На территорию Беларуси уже начали прибывать подразделения из состава ВС РФ. [At the briefing, Zakharova stressed that Moscow and Minsk were forced to respond adequately to what was happening. In particular, through joint patrolling of the airspace, regular joint training, and exercises. So, in February, the joint exercise "Allied Resolve-2022" will be held. Units from the RF Armed Forces have already begun to arrive on the territory of Belarus.]
^Alec, Luhn (6 November 2014). "Ukraine's rebel 'people's republics' begin work of building new states". The Guardian. Donetsk. Retrieved 31 January 2022. The two 'people's republics' carved out over the past seven months by pro-Russia rebels have not been recognised by any countries, and a rushed vote to elect governments for them on Sunday was declared illegal by Kiev, Washington and Brussels.
^Общая информация [General Information]. Official site of the head of the Luhansk People's Republic (in Russian). Archived from the original on 12 March 2018. Retrieved 11 March 2018. 11 июня 2014 года Луганская Народная Республика обратилась к Российской Федерации, а также к 14 другим государствам, с просьбой о признании её независимости. К настоящему моменту независимость республики признана провозглашенной Донецкой Народной Республикой и частично признанным государством Южная Осетия. [On June 11, 2014, the Luhansk People's Republic turned to the Russian Federation, as well as to 14 other states, with a request to recognize its independence. To date, the republic's independence has been recognized by the proclaimed Donetsk People's Republic and the partially recognized state of South Ossetia.]
^"Шепетівський ремонтний завод" отримав партію шасі Tatra від чеської Excalibur Army для РСЗВ "Буревій" ["Shepetivka Repair Plant" received a batch of Tatra chassis from the Czech Excalibur Army for MLRS "Storm"] (in Ukrainian). Defense Express. 23 December 2021. Нові шасі від Tatra були спеціально доопрацьовані чеською Excalibur Army під вимоги ЗСУ – в рамках виконання державного оборонного замовлення. На ДП "Шепетівський ремонтний завод" прибула партія шасі Tatra для випуску нової української 220-мм реактивної системи залпового вогню "Буревій". [The new chassis from Tatra was specially modified by the Czech Excalibur Army to the requirements of the Armed Forces – as part of the state defense order. A batch of Tatra chassis has arrived at the Shepetivka Repair Plant to produce a new Ukrainian 220-mm Bureviya multiple rocket launchers.]
^"The Czech Republic is sending thousands of artillery shells to Ukraine". Czech Daily. 27 January 2022. Retrieved 13 February 2022. ... the (Czech) government decided to donate 4,000 artillery shells to Ukraine for about CZK 37 million. Minister Černochová described it as a gesture of solidarity. Defence Minister Jana Černochová (ODS), who proposed the donation to the cabinet, sees it as a significant act of solidarity. The Czech Republic wants to use the donation to strengthen Ukraine's defense capabilities. The Czech Republic will send 4006 pieces of 152-millimeter artillery ammunition to Ukraine, worth CZK 36.6 million. It will be transferred through a donation agreement.
^ abCite error: The named reference baltic-lethal-aid was invoked but never defined (see the help page).
^Julian E., Barnes; Michael, Crowley; Eric, Schmitt (10 January 2022). "Russia Positioning Helicopters, in Possible Sign of Ukraine Plans". The New York Times. Archived from the original on 22 January 2022. Retrieved 20 January 2022. American officials had expected additional Russian troops to stream toward the Ukrainian border in December and early January, building toward a force of 175,000.
^Cite error: The named reference Crowley-2022-01-29 was invoked but never defined (see the help page).
^Sanger, David E. (10 January 2022). "In U.S.-Russia Talks, How Far Can Putin Turn Back the Clock?". The New York Times. Washington D.C.ISSN0362-4331. Archived from the original on 19 January 2022. Retrieved 21 January 2022. The lesson of the past year may be that while the Cold War is long over, Cold War-like behavior lives on. And in the three decades since the dissolution of the Soviet Union, the tension between the world's two principal nuclear adversaries has never been worse — making the pathway to a peaceful de-escalation harder to discern.
^Mark, Gongloff (13 January 2022). "Putin Launches an Unwelcome Cold War Reboot". Bloomberg News. Bloomberg L.P.Archived from the original on 21 January 2022. Retrieved 21 January 2022. This practice lost favor, perhaps not coincidentally, right around the time the Soviet Union's sphere popped like a balloon in a Chuck E. Cheese brawl. That left the United States alone with a world-sized balloon, at which point everybody agreed spheres of influence were passé. Now, with the growing shakiness of the Pax Americana as Chinese and Russian powers grow, this ugly game is rebooting yet again, Andreas warns.
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