Russia–NATO relations became hostile from 2014, when
Russia annexed Crimea and
invaded eastern Ukraine, starting the
War in Donbas. NATO then ended co-operation, and many member states imposed sanctions on Russia. To deter further Russian aggression, a small NATO force was
deployed in the Baltic states and Poland for the first time, at the request of those countries. Some political analysts see this as the beginning of a
Second Cold War. Over the following years there was a rise in military incidents, while Russia repeatedly probed NATO defenses and carried out covert assassinations in NATO countries. A few NATO members began training and arming Ukraine's military of their own accord. Russia also
intervened in the Syrian civil war in support of the
Ba'athist regime, while some NATO members independently intervened in support of the
Syrian opposition.
Russian annexation of Crimea during the
Russian annexation of Crimea, which caused NATO to suspend co-operation with Russia. In February–March 2014, during Ukraine's
Revolution of Dignity, Russian soldiers without insignia
occupied Crimea, a territory of Ukraine. The soldiers
seized Crimea's parliament, which then installed a pro-Russian government. A
disputed referendum on Crimea's status was held under Russian occupation. According to the Russian-installed authorities, the result was overwhelmingly in favor of joining Russia, which then
annexed Crimea. NATO told Russia to stop its actions and said it supported Ukraine's territorial integrity and sovereignty. In his
Crimea speech on 19 March 2014, Russian president Putin said that the
dissolution of the Soviet Union had "robbed" Russia of territory and called this an "outrageous historical injustice". He said "we are against having a military alliance making itself at home right in our backyard or in our historic territory. I simply cannot imagine that we would travel to
Sevastopol to visit NATO sailors". NATO secretary general
Anders Fogh Rasmussen said in a speech on 19 March 2014:The annexation of Crimea through a so-called referendum held at gunpoint is illegal and illegitimate. ... it undermines our security. Not just NATO's or Ukraine's security, but also Russia's. If the rules don't apply, if agreements are not honored, certainly Russia also stands to suffer the consequences. ... Russia was among those who
committed in 1994 to respect Ukraine's territorial integrity and sovereignty. Russia pledged not to threaten or use force against Ukraine. By turning its back on that agreement, Russia has called into question its credibility and reliability ... No one wants to turn away from our cooperation with Russia. But no one can ignore that Russia has violated the very principles upon which that cooperation is built. On 1 April 2014, NATO foreign ministers issued a joint statement announcing:We, the Foreign Ministers of NATO, are united in our condemnation of Russia's illegal military intervention in Ukraine and Russia's violation of Ukraine's sovereignty and territorial integrity. We do not recognize Russia's illegal and illegitimate attempt to annex Crimea. ... We have decided to suspend all practical civilian and military cooperation between NATO and Russia. Our political dialogue in the NATO-Russia Council can continue, as necessary. Russia used Kosovo's declaration of independence as a justification for recognizing
the independence of Crimea, citing the so-called "
Kosovo independence precedent". On 28 March 2014,
Jens Stoltenberg was elected to become next NATO Secretary-General later in the year. Stoltenberg emphasized that Russia's invasion of Crimea was a "brutal reminder of the necessity of NATO," stating that Russia's actions were "the first time since the Second World War that a country has
annexed a territory belonging to another country." Stoltenberg highlighted the need for NATO having a sufficiently strong military capacity to deter Russia. He further said that Ukraine's possible NATO membership would be "a very important question" in the near future.
Russian invasion of the Donbas Shortly after the Crimean annexation, in April 2014
towns and cities were seized in Ukraine's Donbas region by heavily-armed
Russian paramilitaries. Their commander,
Igor 'Strelkov' Girkin admitted that this sparked the
War in Donbas, as Ukraine soon launched an operation to retake the territory. On 25 April, the militants kidnapped eight
OSCE observers and held them captive, claiming they were "NATO spies". In late August 2014, NATO released satellite imagery showing Russian forces operating inside Ukraine (see
2014 Russian invasion of the Donbas). NATO also said that "large quantities of advanced weapons, including air defence systems, artillery, tanks, and armoured personnel carriers [are] being transferred to separatist forces". NATO Brigadier General Nico Tak said "Russia's ultimate aim is to alleviate pressure on separatist fighters in order to prolong this conflict". Russia denied the claims. Because of the invasion, Ukraine's government said it will ask parliament to drop the country's neutral status and put it on a path towards NATO membership. At
NATO's Wales summit in early September 2014, NATO Secretary General Rasmussen said "Russia is now fighting against Ukraine, in Ukraine. Russian troops and Russian tanks are attacking the Ukrainian forces. And while talking about peace, Russia has not made one single step to make peace possible". The new NATO-Ukraine Commission issued a statement condemning Russia's actions and saying "Russia must end its support for militants in eastern Ukraine, withdraw its troops and stop its military activities along and across the Ukrainian border". On 2 December 2014, NATO foreign ministers announced that a work had begun on creating a rapid reaction force which could deploy wherever needed at short notice. In June 2015, NATO tested the new rapid reaction force for the first time in Poland, with more than 2,000 troops from nine states taking part in the exercise.
Rise in military encounters Eurofighter Typhoon (bottom) intercepting a
Russian Air Force Tupolev Tu-95 bomber (top) approaching Britain in September 2014 In the months after the Crimea annexation, there was an increase in Russian military aircraft flying toward NATO airspace, and it was reported that close encounters between Russian and NATO military aircraft had risen to "cold war levels". According to a report released in November 2014, "a dangerous game of brinkmanship is being played, with the potential for unintended escalation in what is now the most serious security crisis in Europe since the cold war". It highlighted 40 dangerous or sensitive incidents recorded in the eight months alone, including a near-collision between a Russian reconnaissance plane and a passenger plane taking off from Denmark in March with 132 passengers on board. in Russian
air force and naval activity in the Baltic region prompted NATO to step up its longstanding rotation of military jets in Lithuania. There was similar heightened Russian air force activity in the
Asia-Pacific region, relying on the resumed use of the formerly-abandoned Soviet
military base at
Cam Ranh Bay,
Vietnam. In March 2015, Russia's defense minister
Sergei Shoigu said that Russia's long-range bombers would continue patrolling various parts of the world and expand into other regions.
Alleged Russian violation of INF Treaty In July, the U.S. formally accused Russia of having violated the 1987
Intermediate-Range Nuclear Forces (INF) Treaty by testing a prohibited medium-range ground-launched
cruise missile (presumably R-500, a modification of
Iskander) and threatened to retaliate accordingly. In early June 2015, the
U.S. State Department reported that Russia had failed to correct the violation of the I.N.F. Treaty; the U.S. government was said to have made no discernible headway in making Russia so much as acknowledge the compliance problem. The US government's October 2014 report claimed that Russia had 1,643
nuclear warheads ready to launch (an increase from 1,537 in 2011) – one more than the US, thus overtaking the US for the first time since 2000; both countries' deployed capacity being in violation of the
2010 New START treaty that sets a cap of 1,550 nuclear warheads. Likewise, even before 2014, the US had set about implementing a large-scale program, worth up to a trillion dollars, aimed at overall revitalization of its
atomic energy industry, which includes plans for a new generation of weapon carriers.
Bombing of Czech ammunition stores In 2014,
two explosions of ammunition depots occurred in
Vrbětice,
Vlachovice, in the
Zlín District of the
Czech Republic, a NATO member. The first explosion occurred on 16 October, and the second on 3 December. Two people were killed in the first explosion. The cleanup of unexploded ammunition left by the blasts was finished on 13 October 2020. According to the
Security Information Service and the
Police of the Czech Republic, two agents from
GRU Unit 29155 were involved in the explosions, with the motivation of disrupting weapons supplies to Ukraine. In 2024, Czech president Petr Pavel declared that the investigations and information available to him confirm the event to be a Russian attack on Czech (thus NATO) soil. At the end of 2014, Putin approved a revised
national military doctrine, which listed a NATO military buildup near Russia's borders as the top military threat.
2015 jets being intercepted by NATO aircraft over the Baltic Sea, July 2015 In January 2015, the UK, Denmark, Lithuania and Estonia called on the European Union to jointly confront
Russian propaganda by setting up a "permanent platform" to work with NATO in strategic communications and boost local Russian-language media. NATO took a radically new position on propaganda and counter-propaganda in 2015, that "Entirely legal activities, such as running a pro-Moscow TV station, could become a broader assault on a country that would require a NATO response under Article Five of the Treaty." It was reported that "as part of the hardened stance, Britain has committed £750,000 of UK money to support a counter-propaganda unit at NATO's headquarters in Brussels." NATO secretary-general Stoltenberg called for more cooperation with Russia in the fight against terrorism following the deadly
January 2015 Île-de-France attacks. In early February 2015, NATO diplomats said that concern was growing in NATO over indications that Russia's nuclear strategy appeared to point to a lowering of the threshold for using nuclear weapons in any conflict. The conclusion was followed by British Defense Secretary
Michael Fallon saying that Britain must update
its nuclear arsenal in response to Russian modernization of its nuclear forces. Later in February, Fallon said that Putin could repeat tactics used in Ukraine in Baltic members of the NATO alliance; he also said: "NATO has to be ready for any kind of aggression from Russia, whatever form it takes. NATO is getting ready." Fallon noted that it was not a
new Cold War with Russia, as the situation was already "pretty warm". In spring, the Russian Defense Ministry announced it was planning to deploy more forces in occupied Crimea to reinforce its
Black Sea Fleet, including re-deployment of nuclear-capable Tupolev
Tu-22M3 ('Backfire') long-range strike bombers. April 2015 saw the publication of leaked information ascribed to semi-official sources within the Russian military and intelligence establishment, about Russia's alleged preparedness for a nuclear response to certain non-nuclear attacks on the part of NATO; such implied threats were interpreted as "an attempt to create
strategic uncertainty" and undermine Western political cohesion. Between 28 April and 4 May 2015, the Russian GRU
Unit 29155 perpetrated in
Sofia (thus on NATO soil) the poisoning with
Novichok of Bulgarian arms dealer
Emilian Gebrev, who was supplying arms to Ukraine and Georgia. Gebrev, his son and his factory manager survived two poisoning attempts. In June 2015, an independent Russian military analyst was quoted by a major American newspaper as saying:Everybody should understand that we are living in a totally different world than two years ago. In that world, which we lost, it was possible to organize your security with treaties, with mutual-trust measures. Now we have come to an absolutely different situation, where the general way to ensure your security is
military deterrence." In June 2015, US Defence Secretary
Ashton Carter said the US would deploy heavy weapons, including tanks, armoured vehicles and artillery, in Bulgaria, Estonia, Latvia, Lithuania, Poland, and Romania. This would be done with the agreement of those countries, and was to reassure NATO's eastern members in response to Russia's war against Ukraine. The move was interpreted by Western commentators as marking the beginning of a reorientation of NATO's strategy. It was called by a senior Russian Defence Ministry official "the most aggressive act by Washington since the Cold War" and criticized by the Russian Foreign Ministry as "inadequate in military terms" and "an obvious return by the United States and its allies to the schemes of 'the Cold War'". On its part, the U.S. expressed concern over Putin's announcement of plans to add over 40 new ballistic missiles to Russia's nuclear weapons arsenal in 2015. however, Pifer suggested that the most alarming motivation behind this rhetoric could be Putin seeing nuclear weapons not merely as tools of deterrence, but as tools of coercion. In November 2015, NATO's top military commander US General
Philip Breedlove said the alliance was "watching for indications" that Russia could move any of its
nuclear arsenal to Crimea. In December, Russian foreign minister
Sergey Lavrov said re-deployment of nuclear-capable Tupolev
Tu-22M3 ('Backfire') long-range strike bombers to Crimea would be a legitimate action because "Crimea has now become part of [Russia]". NATO-Russia tensions rose further after, on 24 November 2015,
Turkey shot down a Russian warplane that allegedly violated Turkish airspace while on a mission in northwestern Syria. Russian officials denied that the plane had entered Turkish airspace. Shortly after the incident, NATO called an emergency meeting to discuss the matter. Stoltenberg said "We stand in solidarity with Turkey and support the territorial integrity of our NATO ally". In December 2015, NATO member states formally invited
Montenegro to join the alliance, which drew a response from Russia that it would suspend cooperation with that country.
2016 By 2016, NATO
interceptions of Russian military aircraft had reached their highest rate since the Cold War. Shortly before a meeting of the NATO–Russia Council at the level of permanent representatives on 20 April, the first such meeting since June 2014, Russian foreign minister Sergey Lavrov cited what he saw as "an unprecedented military buildup since the end of the Cold War and the presence of NATO on the so-called eastern flank of the alliance with the goal of exerting military and political pressure on Russia", and said "Russia does not plan and will not be drawn into a senseless confrontation and is convinced that there is no reasonable alternative to mutually beneficial all-European cooperation in security." Russia also warned against moving defensive missiles to Turkey's border with Syria. NATO secretary general, Jens Stoltenberg, said: "NATO and Russia have profound and persistent disagreements. Today's meeting did not change that." The
first site of the
NATO missile defence system was opened in
Deveselu,
Romania, in May 2016. It was designed to shoot down long-range missiles. Russia re-stated that the U.S.-built system undermined Russia's security, was a "direct threat to global and regional security", was in violation of the
INF Treaty (which Russia had violated), and that measures were "being taken to ensure the necessary level of security for Russia". The July
2016 Warsaw NATO summit approved the deployment of NATO forces to the Baltic states and eastern Poland for the first time, in response to Russia's 2014 invasion of Ukraine. Four multinational battalions (3,000–4,000 troops altogether) would be deployed in NATO member states Estonia, Latvia, Lithuania and Poland. These countries had requested a permanent NATO presence to deter any Russian attack. NATO stated that the deployment was meant to show "solidarity, determination, and ability to act by triggering an immediate Allied response to any aggression". This became known as
NATO Enhanced Forward Presence. A 2016
Levada poll found that 68% of Russians think that deploying NATO troops in the former Eastern bloc countries is a threat to Russia. Leaders at the Warsaw summit "condemned Russia's ongoing and wide-ranging military build-up" in Crimea and expressed concern over "Russia's efforts and stated plans for further military build-up in the Black Sea region". They also stated that Russia's "significant military presence and support for the
regime in Syria", and its military build-up in the Eastern Mediterranean "posed further risks". NATO leaders agreed to step up support for Ukraine: in a meeting of the NATO-Ukraine Commission, the Allied leaders reviewed the security situation with President of Ukraine
Petro Poroshenko, welcomed the government's plans for reform, and endorsed a Comprehensive Assistance Package for Ukraine to "help make Ukraine's defence and security institutions more effective, efficient and accountable". At the meeting of the Russia–NATO Council held shortly after the Warsaw summit, Russia warned NATO against intensifying its military activity in the Black Sea. Russia also said it agreed to have its military pilots flying over the Baltic Sea turn on the cockpit transmitters, known as transponders, if NATO aircraft did likewise. In July 2016, Russia's military announced that a regiment of long-range surface-to-air
S-400 weapon system would be deployed in the city of
Feodosia in Crimea in August that year, beefing up Russia's
anti-access/area denial capabilities around the peninsula.
Montenegrin coup plot A
coup d'état in the capital of Montenegro, Podgorica was allegedly planned and prepared for 16 October 2016, the day of the
parliamentary election, according to Montenegro's special prosecutor. In September 2017, the trial of those indicted in connection with the plot began in the High Court in
Podgorica, the indictees including leaders of the
Montenegrin opposition and two alleged Russian intelligence agents.
Russian government officials denied any involvement. It is believed that the plot was designed as a last-ditch attempt by the Montenegrin pro-Serbian and pro-Russian opposition to prevent
Montenegro's accession to
NATO, a move stridently opposed by Russia's government that had issued direct threats to Montenegro concerning such eventuality. This theory was re-affirmed by the court verdict handed down in 2019. The Moscow–based
Russian Institute for Strategic Studies (RISS), which has close ties to Russian
Foreign Intelligence Service (SVR), was mentioned by mass media as one of the organisations involved in devising the coup plot; in early November 2017, Russian president
Vladimir Putin sacked the RISS director,
Leonid P. Reshetnikov, a ranking veteran officer of the SVR. In May 2019 the then
Foreign Secretary of the
United Kingdom,
Jeremy Hunt, stated:The failed coup attempt against Montenegro in 2016 was one of the most outrageous examples of Russia's attempts to undermine European democracy. The GRU's brazen attempt to interfere with Montenegro's national elections and undermine Montenegro's application to join NATO is yet another example of destabilising and aggressive Russian behaviour over the last decade.
2017 military exercises in Russia and Belarus, near the borders with NATO On 18 February 2017, Russia's foreign minister
Sergey Lavrov said he supported the resumption of military cooperation with NATO. In late March 2017, the NATO-Russia Council met in Brussels, Belgium. In July, the Council met again in Brussels. Following the meeting, NATO Secretary General Jens Stoltenberg said that Allies and Russia had had a "frank and constructive discussion" on Ukraine, Afghanistan, and transparency and risk reduction. The two sides briefed each other on the upcoming Russian/
Belarusian
Zapad 2017 exercise, and NATO's Exercise Trident Javelin 2017. In early March 2017, the US military accused Russia of breaching the INF arms control treaty by deploying a new ground-launched cruise missile, the
SSC-8. General
Paul Selva, Vice Chairman of the US Joint Chiefs of Staff, said "The system itself presents a risk to most of our facilities in Europe and we believe that the Russians have deliberately deployed it in order to pose a threat to NATO". In August 2017, NATO declared that its
four multinational battlegroups in Estonia, Latvia, Lithuania and Poland were fully operational, following the decision taken at the
2016 Warsaw summit. The
Zapad 2017 military exercises by Russia and
Belarus were the first since the annexation of Crimea, and stoked fears by NATO that it could be used as cover for another invasion. UK secretary of state for defence
Michael Fallon warned that the exercises in Belarus and
Kaliningrad, on NATO's borders, were "designed to provoke us". Fallon said that the number of Russian troops taking part could reach 100,000, although they were later confirmed to be around 12,000.
2018 In February 2018, NATO secretary general
Jens Stoltenberg stated: "We don't see any threat [from Russia] against any NATO ally and therefore, I'm always careful speculating too much about hypothetical situations." Stoltenberg welcomed the
2018 Russia–United States Summit between Vladimir Putin and Donald Trump in Helsinki, Finland. He said NATO is not trying to isolate Russia. In response to the
poisoning of Sergei and Yulia Skripal in
Salisbury, England (thus on NATO soil) on 4 March 2018, Stoltenberg announced that NATO would be expelling seven Russian diplomats from the Russian mission to NATO in Brussels. Russia blamed the US for the NATO response. The attempted assassination and subsequent agent exposures was an embarrassment for Putin and for Russia's spying organization. It was allegedly organized by the secret
Unit 29155 of the Russian GRU, under the command of Major General Andrei V. Averyanov.
2019 President
Donald Trump announced on 20 October 2018 that he would withdraw the US from the
Intermediate-Range Nuclear Forces Treaty due to Russian non-compliance, stating that Russia had breached the treaty by developing and deploying an intermediate-range cruise missile known as the SSC-8 (
Novator 9M729). The Trump administration claimed another reason for the withdrawal was to counter a
Chinese arms buildup in the Pacific, including within the
South China Sea, as China was not a signatory to the treaty. The US formally suspended the treaty on 1 February 2019, and Russia did so on the following day in response. The United States formally withdrew from the treaty on 2 August 2019. In April 2019, NATO secretary general Stoltenberg warned a joint session of the
U.S. Congress of the threat posed by "a more assertive" Russia to the alliances members, which included a massive military buildup, threats to sovereign states, the use of
nerve agents and
cyberattacks. On 23 August 2019, another assassination was performed by Russian intelligence on NATO territory. At around midday in the
Kleiner Tiergarten park in Berlin, Germany,
Zelimkhan Khangoshvili, an ethnic Chechen Georgian who was a former platoon commander for the
Chechen Republic of Ichkeria during the
Second Chechen War, and a Georgian military officer during the 2008
Russo-Georgian War, was walking down a wooded path on his way back from the mosque he attended when he was shot three times—once in the shoulder and twice in the head—by a Russian assassin on a bike with a suppressed
Glock 26. The bicycle, a plastic bag with the murder weapon, and a wig the perpetrator was using were dumped into the
Spree. The suspect, identified as 56-year-old Russian national "Vadim Sokolov" by German police, was apprehended soon after the assassination. The Russian government and Chechen leader
Ramzan Kadyrov have both been linked to the killing. In September 2019, Russian foreign minister
Sergey Lavrov said that "NATO approaching our borders is a threat to Russia". He was quoted as saying that if NATO accepts Georgian membership with the article on collective defense covering only Tbilisi-administered territory (i.e., excluding the Georgian territories of
Abkhazia and
South Ossetia, both of which are currently
unrecognized breakaway republics supported by Russia), "we will not start a war, but such conduct will undermine our relations with NATO and with countries who are eager to enter the alliance."
2020 In June 2020, NATO secretary general
Jens Stoltenberg stated in a speech that NATO aspires for "a constructive relationship with Russia," emphasizing that the alliance would discuss arms control with Russia diplomatically. Throughout 2020, NATO air forces intercepted the increased Russian military air patrols near allied airspace, particularly the Baltic and Black Seas. According to the 2020 NATO reports, allied aircraft scrambled more than 400 times, reportedly around 350 of which were Russian military aircraft. In August 2020, the
poisoning of Russian opposition leader Alexei Navalny led NATO to condemn the attack and to call on Russia to cooperate with the ongoing investigation under the
Organization for the Prohibition of Chemical Weapons (OPCW). ==Russian military buildup and ultimatum to NATO (2021–2022)==