The number of Russian diplomatic missions in Brussels has been reduced twice unilaterally by NATO in 2015 and 2018 - after the alliance's decision of April 1, 2014 to suspend all practical civilian and military cooperation between Russia and NATO in the wake of Russia's annexation of Crimea. Diplomats' access to the alliance headquarters and communications with its international secretariat was restricted, military contacts have frozen.

Yet the new closure of all diplomatic contacts is a perilous new low. Kommersant sources said that the changes will affect the military liaison mission of the North Atlantic alliance in Moscow, aimed at promoting the expansion of the dialogue between Russia and NATO. However, in recent years there has been no de facto cooperation. And now, as Foreign Minister Sergey Lavrov has announced, the activities of the military liaison mission will be suspended. The accreditation of its personnel will be canceled on November 1.

NATO told RIA Novosti news service on Monday that it regretted Moscow's move. Meanwhile, among Western countries, Germany was the first to respond. "It would complicate the already difficult situation in which we are now and prolong the "ice age," German Foreign Minister Heiko Maas told reporters.

"Lavrov said on Monday, commenting on the present and future of relations between Moscow and the North Atlantic Alliance, "If this is the case, then we see no great need to continue pretending that any changes will be possible in the foreseeable future because NATO has already announced that such changes are impossible.

The suspension of activities of the Russian Permanent Mission to NATO, as well as the military liaison and information mission in Russia, means that Moscow and Brussels have decided to "draw a final line under the partnership relations of previous decades," explained Andrei Kortunov, director-general of the Russian Council on Foreign Affairs, "These relations began to form in the 1990s, opening channels for cooperation between the sides … but they have continued to steadily deteriorate over recent years."

Kortunov believes the current rupture was promoted by Brussels. "A new strategy for NATO is being prepared, which will be adopted at the next summit of the alliance, and the previous partnership with Russia does not fit into its concept anymore."

The existence and expansion of NATO after the end of the Cold War was the main reason for the destruction of the whole complex of relations between Russia and the West. Today, Russia is paying particular attention to marking red lines related to the further steps of Ukraine's integration into NATO. Vladimir Putin's spokesman Dmitry Peskov previously stated this, warning that in response to the alliance's activity in the Ukrainian direction, Moscow would take "active steps" to ensure its security.