NATO Expansion After USSR: What Was Signed and What Never Existed

NATO expanded eastward without any treaty prohibiting it

No document cited in the debate prevents NATO from adding new members. The commitment Moscow has invoked for years—that the West would not move "one inch to the east"—does not appear in any ratified text, and this absence explains much of the current tension. What was signed in 1990 was the Two Plus Four Agreement: it only required that Alliance troops not be deployed in the territory of former East Germany, a clause that has been respected. The 1997 NATO-Russia Founding Act points in the opposite direction: it recognizes the sovereignty of each signatory and their freedom to ally with whomever they choose.

According to this interpretation, enlargement was not a breach of contract. It was a political decision. And that is where the real discussion begins.

What the 1990 Two Plus Four Agreement signed and what it left out

The Two Plus Four Agreement, signed by the two Germanys and the four victorious powers of World War II, concluded German reunification. Its military content is limited to restrictions on deployments in the eastern part of the country. Nothing about future enlargements. Those who support the contrary thesis rely on hallway conversations prior to signing, and the jokes among negotiators, to argue that a verbal pact existed but never made it onto paper.

The problem with that argument is that when a verbal pact becomes doctrine, it ceases to be merely verbal. And in 1997 there was a perfect opportunity to put it in writing.

The argument Yeltsin never used against Clinton

Transcripts of conversations between Boris Yeltsin and Bill Clinton show a Russian president trying to convince his US counterpart to halt the Alliance's expansion. At no point does he cite an informal 1990 agreement. If such a commitment had existed, it would have been the definitive argument, and he did not use it. Those refuting the pact theory add that Mikhail Gorbachev also denied its existence. The opposing side responds with another question: why then did Yeltsin insist so much? A breakdown of these dialogues is available in the reference analysis, showing the exact tone of the negotiation.

Minsk, Merkel, and the deception myth

The Minsk agreements were signed in two rounds: the first in September 2014 and the second in February 2015, comprising thirteen points. There was no clause prohibiting Ukraine from rearming. Years later, statements by Angela Merkel describing Minsk as an attempt to prevent war were spread in Russian media as a confession: the Chancellor allegedly admitted everything was a ruse to buy time. The text says what it says, and a forced interpretation is not a quote.

Why neighboring countries join NATO

Sweden and Finland have joined the Alliance, and one participant argues that Moldova and Georgia will enter in the medium term. Another participant claims that almost all states that were under Russia or the USSR umbrella at some point want to join NATO and the EU. One school of thought explains this through pure security; another, through economic interest and funds arriving from Brussels. Here appears an uncomfortable fact for the more idealistic narrative: between 2004 and 2019, €160 billion left Poland for companies located in the Netherlands, UK, Luxembourg, and Germany via tax engineering, according to a calculation provided by a debate participant. Membership and business are not incompatible.

The fundamental objection is different: if Moscow openly speaks of its right to a "sphere of influence," neighbors protect themselves against what they consider curtailed sovereignty. The counter-argument maintains that the Alliance has also intervened where it suited them.

Cuba, Turkey, and Italy: double standards

The Cuban Missile Crisis brought the world to the brink of nuclear war, yet little is said about US missiles installed years earlier in Italy and Turkey, which were bargaining chips in the withdrawal. According to a version presented in the debate, the parallel repeats with the Berlin Wall: the USSR proposed a unified and neutral Germany, and the response was NATO. These are the episodes each side selects to build their narrative.

No one will resolve here whether the fault lies with a paper that was not signed or a policy that was applied. Given how previous chapters have closed, it is likely that enlargement will continue advancing through voluntary applications and that Moscow will keep invoking a commitment that exists only in conversations. Although a document could always appear to unsettle both sides.